From 7179a9d1d63a0ff3c04db1631d6324a3b6ede4fe Mon Sep 17 00:00:00 2001
From: Jesse Hallam <jesse.hallam@gmail.com>
Date: Fri, 13 Dec 2024 09:49:28 -0400
Subject: [PATCH] reduce usage of Utils.localizeMessage (#29282)

* reduce usage of Utils.localizeMessage

As we begin to transition to react-intl's `formatjs` for extraction, our custom wrappers like `Utils.localizeMessage` prevent an adoption roadblock.

This is the first in a series of PRs to begin to migrate away in favour of:
* `useIntl` when inside React functional component
* use `injectIntl` and use access the `intl` prop from class components
* use the new `getIntl`, leveraging a memoized `createIntl` and the store outside of React components

I'm pausing in this effort to get a feel from peers on both the substance of these changes and best practices in supporting them.

* prefer shallowWithIntl, renderWithContext, and local injectIntl wrapping

* revert unintentional whitespaces

* clarify getIntl, add minor unit test

* avoid triggering mmjstool

* update e2e tests

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
---
 .../accessibility/accessibility_post_spec.js  |   4 +-
 .../components/actions_menu/actions_menu.tsx  |   5 +-
 .../markdown_image.test.tsx.snap              |  10 +-
 .../__snapshots__/post_reaction.test.tsx.snap |   2 +-
 .../post_reaction/post_reaction.test.tsx      |  10 +-
 .../post_view/post_reaction/post_reaction.tsx |  15 +-
 .../__snapshots__/sidebar.test.tsx.snap       |   6 +-
 .../sidebar_base_channel.test.tsx.snap        |   8 +-
 .../sidebar_channel_link.test.tsx             |  16 +-
 .../sidebar_channel_link.tsx                  |  16 +-
 .../sidebar_direct_channel.test.tsx.snap      |   8 +-
 .../sidebar_list/sidebar_list.test.tsx        |  37 +++--
 .../sidebar/sidebar_list/sidebar_list.tsx     |  12 +-
 .../single_image_view.test.tsx.snap           |  12 +-
 .../single_image_view.test.tsx                |   2 +-
 .../src/components/size_aware_image.test.tsx  |  59 ++++---
 .../src/components/size_aware_image.tsx       |  25 +--
 .../status_dropdown.test.tsx.snap             |  45 ++----
 .../suggestion/switch_channel_provider.tsx    |  16 +-
 .../team_members_dropdown.test.tsx.snap       |  49 +++++-
 .../team_members_dropdown.test.tsx            |  10 +-
 .../team_members_dropdown.tsx                 |  35 ++--
 .../components/team_sidebar/team_sidebar.tsx  |  13 +-
 .../user_groups_list/user_groups_list.tsx     |  12 +-
 .../__snapshots__/submenu_item.test.tsx.snap  | 152 ++++++++++++++++++
 .../menu/menu_items/submenu_item.test.tsx     |  32 ++--
 .../widgets/menu/menu_items/submenu_item.tsx  |  18 ++-
 .../__snapshots__/submenu_modal.test.tsx.snap |  12 +-
 .../submenu_modal/submenu_modal.test.tsx      |  13 +-
 webapp/channels/src/utils/i18n.test.tsx       |  29 ++++
 webapp/channels/src/utils/i18n.tsx            |  20 ++-
 31 files changed, 475 insertions(+), 228 deletions(-)
 create mode 100644 webapp/channels/src/utils/i18n.test.tsx

diff --git a/e2e-tests/cypress/tests/integration/channels/accessibility/accessibility_post_spec.js b/e2e-tests/cypress/tests/integration/channels/accessibility/accessibility_post_spec.js
index 74a99a65d4..f74a7a5360 100644
--- a/e2e-tests/cypress/tests/integration/channels/accessibility/accessibility_post_spec.js
+++ b/e2e-tests/cypress/tests/integration/channels/accessibility/accessibility_post_spec.js
@@ -181,7 +181,7 @@ describe('Verify Accessibility Support in Post', () => {
                 }
 
                 // * Verify focus is on the reactions button
-                cy.get(`#CENTER_reaction_${postId}`).should('be.focused').and('have.attr', 'aria-label', 'add reaction');
+                cy.get(`#CENTER_reaction_${postId}`).should('be.focused').and('have.attr', 'aria-label', 'Add Reaction');
                 cy.focused().tab();
 
                 // * Verify focus is on the save post button
@@ -247,7 +247,7 @@ describe('Verify Accessibility Support in Post', () => {
                 cy.focused().tab({shift: true});
 
                 // * Verify focus is on the reactions button
-                cy.get(`#RHS_COMMENT_reaction_${postId}`).should('be.focused').and('have.attr', 'aria-label', 'add reaction');
+                cy.get(`#RHS_COMMENT_reaction_${postId}`).should('be.focused').and('have.attr', 'aria-label', 'Add Reaction');
                 cy.focused().tab({shift: true});
 
                 // * Verify focus is on most recent action
diff --git a/webapp/channels/src/components/actions_menu/actions_menu.tsx b/webapp/channels/src/components/actions_menu/actions_menu.tsx
index dac3f3b6db..a4a5694535 100644
--- a/webapp/channels/src/components/actions_menu/actions_menu.tsx
+++ b/webapp/channels/src/components/actions_menu/actions_menu.tsx
@@ -24,7 +24,6 @@ import Pluggable from 'plugins/pluggable';
 import {createCallContext} from 'utils/apps';
 import {Constants, Locations, ModalIdentifiers} from 'utils/constants';
 import * as PostUtils from 'utils/post_utils';
-import * as Utils from 'utils/utils';
 
 import type {ModalData} from 'types/actions';
 import type {HandleBindingClick, OpenAppsModal, PostEphemeralCallResponseForPost} from 'types/apps';
@@ -395,7 +394,7 @@ export class ActionMenuClass extends React.PureComponent<Props, State> {
                         key='more-actions-button'
                         ref={this.buttonRef}
                         id={`${this.props.location}_actions_button_${this.props.post.id}`}
-                        aria-label={Utils.localizeMessage({id: 'post_info.actions.tooltip.actions', defaultMessage: 'Actions'}).toLowerCase()}
+                        aria-label={formatMessage({id: 'post_info.actions.tooltip.actions', defaultMessage: 'Actions'}).toLowerCase()}
                         className={classNames('post-menu__item', {
                             'post-menu__item--active': this.props.isMenuOpen,
                         })}
@@ -409,7 +408,7 @@ export class ActionMenuClass extends React.PureComponent<Props, State> {
                     id={`${this.props.location}_actions_dropdown_${this.props.post.id}`}
                     openLeft={true}
                     openUp={this.state.openUp}
-                    ariaLabel={Utils.localizeMessage({id: 'post_info.menuAriaLabel', defaultMessage: 'Post extra options'})}
+                    ariaLabel={formatMessage({id: 'post_info.menuAriaLabel', defaultMessage: 'Post extra options'})}
                     key={`${this.props.location}_actions_dropdown_${this.props.post.id}`}
                 >
                     {menuItems}
diff --git a/webapp/channels/src/components/markdown_image/__snapshots__/markdown_image.test.tsx.snap b/webapp/channels/src/components/markdown_image/__snapshots__/markdown_image.test.tsx.snap
index feb76f0ce4..cca77fe243 100644
--- a/webapp/channels/src/components/markdown_image/__snapshots__/markdown_image.test.tsx.snap
+++ b/webapp/channels/src/components/markdown_image/__snapshots__/markdown_image.test.tsx.snap
@@ -17,7 +17,7 @@ exports[`components/MarkdownImage should match snapshot 1`] = `
 `;
 
 exports[`components/MarkdownImage should match snapshot for SizeAwareImage dimensions 1`] = `
-<SizeAwareImage
+<injectIntl(SizeAwareImage)
   alt="test image"
   className="markdown-inline-img markdown-inline-img--hover markdown-inline-img--no-border"
   dimensions={
@@ -62,7 +62,7 @@ exports[`components/MarkdownImage should provide image src as an alt text for Ma
     imageKey="https://example.com/image.png"
     postId="post_id"
   >
-    <SizeAwareImage
+    <injectIntl(SizeAwareImage)
       alt=""
       className="markdown-inline-img markdown-inline-img--hover cursor--pointer a11y--active"
       dimensions={Object {}}
@@ -97,7 +97,7 @@ exports[`components/MarkdownImage should render a link if the source is unsafe 1
 
 exports[`components/MarkdownImage should render an image with no preview if the source is safe and the image is a link 1`] = `
 <div>
-  <SizeAwareImage
+  <injectIntl(SizeAwareImage)
     alt="test image"
     className="markdown-inline-img markdown-inline-img--hover markdown-inline-img--no-border"
     dimensions={
@@ -122,7 +122,7 @@ exports[`components/MarkdownImage should render an image with no preview if the
 
 exports[`components/MarkdownImage should render an image with preview modal if the source is safe 1`] = `
 <div>
-  <SizeAwareImage
+  <injectIntl(SizeAwareImage)
     alt="test image"
     className="markdown-inline-img markdown-inline-img--hover cursor--pointer a11y--active"
     dimensions={
@@ -152,7 +152,7 @@ exports[`components/MarkdownImage should render image with MarkdownImageExpand i
     imageKey="https://example.com/image.png"
     postId="post_id"
   >
-    <SizeAwareImage
+    <injectIntl(SizeAwareImage)
       alt="test image"
       className="markdown-inline-img markdown-inline-img--hover cursor--pointer a11y--active"
       dimensions={Object {}}
diff --git a/webapp/channels/src/components/post_view/post_reaction/__snapshots__/post_reaction.test.tsx.snap b/webapp/channels/src/components/post_view/post_reaction/__snapshots__/post_reaction.test.tsx.snap
index 537518867e..b360916525 100644
--- a/webapp/channels/src/components/post_view/post_reaction/__snapshots__/post_reaction.test.tsx.snap
+++ b/webapp/channels/src/components/post_view/post_reaction/__snapshots__/post_reaction.test.tsx.snap
@@ -26,7 +26,7 @@ exports[`components/post_view/PostReaction should match snapshot 1`] = `
     }
   >
     <button
-      aria-label="add reaction"
+      aria-label="Add Reaction"
       className="post-menu__item post-menu__item--reactions"
       data-testid="post-reaction-emoji-icon"
       id="CENTER_reaction_post_id_1"
diff --git a/webapp/channels/src/components/post_view/post_reaction/post_reaction.test.tsx b/webapp/channels/src/components/post_view/post_reaction/post_reaction.test.tsx
index f8cc9a77b3..742aa7034c 100644
--- a/webapp/channels/src/components/post_view/post_reaction/post_reaction.test.tsx
+++ b/webapp/channels/src/components/post_view/post_reaction/post_reaction.test.tsx
@@ -1,12 +1,12 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-import {shallow} from 'enzyme';
 import React from 'react';
 
+import {shallowWithIntl} from 'tests/helpers/intl-test-helper';
 import {TestHelper} from 'utils/test_helper';
 
-import PostReaction from './post_reaction';
+import PostReaction, {type PostReaction as PostReactionComponent} from './post_reaction';
 
 describe('components/post_view/PostReaction', () => {
     const baseProps = {
@@ -23,13 +23,13 @@ describe('components/post_view/PostReaction', () => {
     };
 
     test('should match snapshot', () => {
-        const wrapper = shallow(<PostReaction {...baseProps}/>);
+        const wrapper = shallowWithIntl(<PostReaction {...baseProps}/>);
         expect(wrapper).toMatchSnapshot();
     });
 
     test('should call toggleReaction and toggleEmojiPicker on handleToggleEmoji', () => {
-        const wrapper = shallow(<PostReaction {...baseProps}/>);
-        const instance = wrapper.instance() as PostReaction;
+        const wrapper = shallowWithIntl(<PostReaction {...baseProps}/>);
+        const instance = wrapper.instance() as PostReactionComponent;
 
         instance.handleToggleEmoji(TestHelper.getCustomEmojiMock({name: 'smile'}));
         expect(baseProps.actions.toggleReaction).toHaveBeenCalledTimes(1);
diff --git a/webapp/channels/src/components/post_view/post_reaction/post_reaction.tsx b/webapp/channels/src/components/post_view/post_reaction/post_reaction.tsx
index 7d8a7fbaad..c63d5b3032 100644
--- a/webapp/channels/src/components/post_view/post_reaction/post_reaction.tsx
+++ b/webapp/channels/src/components/post_view/post_reaction/post_reaction.tsx
@@ -3,7 +3,8 @@
 
 import classNames from 'classnames';
 import React from 'react';
-import {defineMessages} from 'react-intl';
+import type {WrappedComponentProps} from 'react-intl';
+import {defineMessages, injectIntl} from 'react-intl';
 
 import type {Emoji} from '@mattermost/types/emojis';
 
@@ -16,7 +17,6 @@ import EmojiIcon from 'components/widgets/icons/emoji_icon';
 import WithTooltip from 'components/with_tooltip/with_tooltip_new';
 
 import {Locations} from 'utils/constants';
-import {localizeMessage} from 'utils/utils';
 
 const TOP_OFFSET = -7;
 
@@ -27,12 +27,12 @@ const messages = defineMessages({
     },
 });
 
-export type Props = {
+export type Props = WrappedComponentProps & {
     channelId?: string;
     postId: string;
     teamId: string;
     getDotMenuRef: () => HTMLDivElement | null;
-    location: keyof typeof Locations;
+    location?: keyof typeof Locations;
     showEmojiPicker: boolean;
     toggleEmojiPicker: (e?: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
     actions: {
@@ -45,7 +45,7 @@ type State = {
     showEmojiPicker: boolean;
 }
 
-export default class PostReaction extends React.PureComponent<Props, State> {
+export class PostReaction extends React.PureComponent<Props, State> {
     public static defaultProps: Partial<Props> = {
         location: Locations.CENTER as 'CENTER',
         showEmojiPicker: false,
@@ -65,6 +65,7 @@ export default class PostReaction extends React.PureComponent<Props, State> {
             postId,
             showEmojiPicker,
             teamId,
+            intl,
         } = this.props;
 
         let spaceRequiredAbove;
@@ -96,7 +97,7 @@ export default class PostReaction extends React.PureComponent<Props, State> {
                         <button
                             data-testid='post-reaction-emoji-icon'
                             id={`${location}_reaction_${postId}`}
-                            aria-label={localizeMessage({id: 'post_info.tooltip.add_reactions', defaultMessage: 'Add Reaction'}).toLowerCase()}
+                            aria-label={intl.formatMessage({id: 'post_info.tooltip.add_reactions', defaultMessage: 'Add Reaction'})}
                             className={classNames('post-menu__item', 'post-menu__item--reactions', {
                                 'post-menu__item--active': showEmojiPicker,
                             })}
@@ -110,3 +111,5 @@ export default class PostReaction extends React.PureComponent<Props, State> {
         );
     }
 }
+
+export default injectIntl(PostReaction);
diff --git a/webapp/channels/src/components/sidebar/__snapshots__/sidebar.test.tsx.snap b/webapp/channels/src/components/sidebar/__snapshots__/sidebar.test.tsx.snap
index 2a79c0e72c..f537417f86 100644
--- a/webapp/channels/src/components/sidebar/__snapshots__/sidebar.test.tsx.snap
+++ b/webapp/channels/src/components/sidebar/__snapshots__/sidebar.test.tsx.snap
@@ -36,7 +36,7 @@ exports[`components/sidebar should match snapshot 1`] = `
       pluggableName="LeftSidebarHeader"
     />
   </div>
-  <Connect(SidebarList)
+  <Connect(injectIntl(SidebarList))
     handleOpenMoreDirectChannelsModal={[Function]}
     onDragEnd={[Function]}
     onDragStart={[Function]}
@@ -79,7 +79,7 @@ exports[`components/sidebar should match snapshot when direct channels modal is
       pluggableName="LeftSidebarHeader"
     />
   </div>
-  <Connect(SidebarList)
+  <Connect(injectIntl(SidebarList))
     handleOpenMoreDirectChannelsModal={[Function]}
     onDragEnd={[Function]}
     onDragStart={[Function]}
@@ -126,7 +126,7 @@ exports[`components/sidebar should match snapshot when more channels modal is op
       pluggableName="LeftSidebarHeader"
     />
   </div>
-  <Connect(SidebarList)
+  <Connect(injectIntl(SidebarList))
     handleOpenMoreDirectChannelsModal={[Function]}
     onDragEnd={[Function]}
     onDragStart={[Function]}
diff --git a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_base_channel/__snapshots__/sidebar_base_channel.test.tsx.snap b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_base_channel/__snapshots__/sidebar_base_channel.test.tsx.snap
index ca99a4ddec..f5ebc5ed3e 100644
--- a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_base_channel/__snapshots__/sidebar_base_channel.test.tsx.snap
+++ b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_base_channel/__snapshots__/sidebar_base_channel.test.tsx.snap
@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match snapshot 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   ariaLabelPrefix="public channel"
   channel={
     Object {
@@ -34,7 +34,7 @@ exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match sn
 `;
 
 exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match snapshot when private channel 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   ariaLabelPrefix="private channel"
   channel={
     Object {
@@ -67,7 +67,7 @@ exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match sn
 `;
 
 exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match snapshot when shared channel 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   ariaLabelPrefix="public channel"
   channel={
     Object {
@@ -102,7 +102,7 @@ exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match sn
 `;
 
 exports[`components/sidebar/sidebar_channel/sidebar_base_channel should match snapshot when shared private channel 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   ariaLabelPrefix="private channel"
   channel={
     Object {
diff --git a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.test.tsx b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.test.tsx
index a8f6824dee..4969566fd5 100644
--- a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.test.tsx
+++ b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.test.tsx
@@ -1,13 +1,15 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-import {shallow} from 'enzyme';
 import React from 'react';
 
 import type {ChannelType} from '@mattermost/types/channels';
 
+import type {SidebarChannelLink as SidebarChannelLinkComponent} from 'components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link';
 import SidebarChannelLink from 'components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link';
 
+import {shallowWithIntl} from 'tests/helpers/intl-test-helper';
+
 describe('components/sidebar/sidebar_channel/sidebar_channel_link', () => {
     const baseProps = {
         channel: {
@@ -49,7 +51,7 @@ describe('components/sidebar/sidebar_channel/sidebar_channel_link', () => {
     };
 
     test('should match snapshot', () => {
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <SidebarChannelLink {...baseProps}/>,
         );
 
@@ -60,7 +62,7 @@ describe('components/sidebar/sidebar_channel/sidebar_channel_link', () => {
         const userAgentMock = jest.requireMock('utils/user_agent');
         userAgentMock.isDesktopApp.mockImplementation(() => false);
 
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <SidebarChannelLink {...baseProps}/>,
         );
 
@@ -68,7 +70,7 @@ describe('components/sidebar/sidebar_channel/sidebar_channel_link', () => {
     });
 
     test('should match snapshot when tooltip is enabled', () => {
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <SidebarChannelLink {...baseProps}/>,
         );
 
@@ -84,7 +86,7 @@ describe('components/sidebar/sidebar_channel/sidebar_channel_link', () => {
             ariaLabelPrefix: 'aria_label_prefix_',
         };
 
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <SidebarChannelLink {...props}/>,
         );
 
@@ -92,10 +94,10 @@ describe('components/sidebar/sidebar_channel/sidebar_channel_link', () => {
     });
 
     test('should enable tooltip when needed', () => {
-        const wrapper = shallow<SidebarChannelLink>(
+        const wrapper = shallowWithIntl(
             <SidebarChannelLink {...baseProps}/>,
         );
-        const instance = wrapper.instance();
+        const instance = wrapper.instance() as SidebarChannelLinkComponent;
 
         instance.labelRef = {
             current: {
diff --git a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.tsx b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.tsx
index ab9ebabff9..16159f48c7 100644
--- a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.tsx
+++ b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_channel_link/sidebar_channel_link.tsx
@@ -3,6 +3,7 @@
 
 import classNames from 'classnames';
 import React from 'react';
+import {type WrappedComponentProps, injectIntl} from 'react-intl';
 import {Link} from 'react-router-dom';
 
 import type {Channel} from '@mattermost/types/channels';
@@ -19,7 +20,6 @@ import Constants, {RHSStates} from 'utils/constants';
 import {wrapEmojis} from 'utils/emoji_utils';
 import {cmdOrCtrlPressed} from 'utils/keyboard';
 import {Mark} from 'utils/performance_telemetry';
-import {localizeMessage} from 'utils/utils';
 
 import type {RhsState} from 'types/store/rhs';
 
@@ -28,7 +28,7 @@ import ChannelPencilIcon from '../channel_pencil_icon';
 import SidebarChannelIcon from '../sidebar_channel_icon';
 import SidebarChannelMenu from '../sidebar_channel_menu';
 
-type Props = {
+type Props = WrappedComponentProps & {
     channel: Channel;
     link: string;
     label: string;
@@ -79,7 +79,7 @@ type State = {
     showTooltip: boolean;
 };
 
-export default class SidebarChannelLink extends React.PureComponent<Props, State> {
+export class SidebarChannelLink extends React.PureComponent<Props, State> {
     labelRef: React.RefObject<HTMLDivElement>;
 
     constructor(props: Props) {
@@ -110,7 +110,7 @@ export default class SidebarChannelLink extends React.PureComponent<Props, State
     };
 
     getAriaLabel = (): string => {
-        const {label, ariaLabelPrefix, unreadMentions} = this.props;
+        const {label, ariaLabelPrefix, unreadMentions, intl} = this.props;
 
         let ariaLabel = label;
 
@@ -119,13 +119,13 @@ export default class SidebarChannelLink extends React.PureComponent<Props, State
         }
 
         if (unreadMentions === 1) {
-            ariaLabel += ` ${unreadMentions} ${localizeMessage({id: 'accessibility.sidebar.types.mention', defaultMessage: 'mention'})}`;
+            ariaLabel += ` ${unreadMentions} ${intl.formatMessage({id: 'accessibility.sidebar.types.mention', defaultMessage: 'mention'})}`;
         } else if (unreadMentions > 1) {
-            ariaLabel += ` ${unreadMentions} ${localizeMessage({id: 'accessibility.sidebar.types.mentions', defaultMessage: 'mentions'})}`;
+            ariaLabel += ` ${unreadMentions} ${intl.formatMessage({id: 'accessibility.sidebar.types.mentions', defaultMessage: 'mentions'})}`;
         }
 
         if (this.props.isUnread && unreadMentions === 0) {
-            ariaLabel += ` ${localizeMessage({id: 'accessibility.sidebar.types.unread', defaultMessage: 'unread'})}`;
+            ariaLabel += ` ${intl.formatMessage({id: 'accessibility.sidebar.types.unread', defaultMessage: 'unread'})}`;
         }
 
         return ariaLabel.toLowerCase();
@@ -298,3 +298,5 @@ export default class SidebarChannelLink extends React.PureComponent<Props, State
         );
     }
 }
+
+export default injectIntl(SidebarChannelLink);
diff --git a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_direct_channel/__snapshots__/sidebar_direct_channel.test.tsx.snap b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_direct_channel/__snapshots__/sidebar_direct_channel.test.tsx.snap
index b4cf9fe77b..27a4ee585d 100644
--- a/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_direct_channel/__snapshots__/sidebar_direct_channel.test.tsx.snap
+++ b/webapp/channels/src/components/sidebar/sidebar_channel/sidebar_direct_channel/__snapshots__/sidebar_direct_channel.test.tsx.snap
@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match snapshot 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   channel={
     Object {
       "create_at": 0,
@@ -39,7 +39,7 @@ exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match
 `;
 
 exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match snapshot if DM is with bot with custom icon 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   channel={
     Object {
       "create_at": 0,
@@ -78,7 +78,7 @@ exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match
 `;
 
 exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match snapshot if DM is with current user 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   channel={
     Object {
       "create_at": 0,
@@ -116,7 +116,7 @@ exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match
 `;
 
 exports[`components/sidebar/sidebar_channel/sidebar_direct_channel should match snapshot if DM is with deleted user 1`] = `
-<Connect(SidebarChannelLink)
+<Connect(injectIntl(SidebarChannelLink))
   channel={
     Object {
       "create_at": 0,
diff --git a/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.test.tsx b/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.test.tsx
index 6994148287..8abe42578b 100644
--- a/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.test.tsx
+++ b/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.test.tsx
@@ -11,10 +11,11 @@ import type {TeamType} from '@mattermost/types/teams';
 
 import {CategoryTypes} from 'mattermost-redux/constants/channel_categories';
 
+import {shallowWithIntl} from 'tests/helpers/intl-test-helper';
 import {DraggingStates, DraggingStateTypes} from 'utils/constants';
 import {TestHelper} from 'utils/test_helper';
 
-import SidebarList from './sidebar_list';
+import SidebarList, {type SidebarList as SidebarListComponent} from './sidebar_list';
 
 describe('SidebarList', () => {
     const currentChannel = TestHelper.getChannelMock({
@@ -115,7 +116,7 @@ describe('SidebarList', () => {
     };
 
     test('should match snapshot', () => {
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
 
@@ -130,7 +131,7 @@ describe('SidebarList', () => {
     });
 
     test('should close sidebar on mobile when channel is selected (ie. changed)', () => {
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
 
@@ -139,11 +140,12 @@ describe('SidebarList', () => {
     });
 
     test('should scroll to top when team changes', () => {
-        const wrapper = shallow<SidebarList>(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
+        const instance = wrapper.instance() as SidebarListComponent;
 
-        wrapper.instance().scrollbar = {
+        instance.scrollbar = {
             current: {
                 scrollToTop: jest.fn(),
             } as any,
@@ -155,14 +157,14 @@ describe('SidebarList', () => {
         };
 
         wrapper.setProps({currentTeam: newCurrentTeam});
-        expect(wrapper.instance().scrollbar.current!.scrollToTop).toHaveBeenCalled();
+        expect(instance.scrollbar.current!.scrollToTop).toHaveBeenCalled();
     });
 
     test('should display unread scroll indicator when channels appear outside visible area', () => {
-        const wrapper = shallow<SidebarList>(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
-        const instance = wrapper.instance();
+        const instance = wrapper.instance() as SidebarListComponent;
 
         instance.scrollbar = {
             current: {
@@ -189,10 +191,10 @@ describe('SidebarList', () => {
     });
 
     test('should scroll to correct position when scrolling to channel', () => {
-        const wrapper = shallow<SidebarList>(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
-        const instance = wrapper.instance();
+        const instance = wrapper.instance() as SidebarListComponent;
 
         instance.scrollToPosition = jest.fn();
 
@@ -218,7 +220,7 @@ describe('SidebarList', () => {
             style: {},
         }]);
 
-        const wrapper = shallow<SidebarList>(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
 
@@ -232,7 +234,9 @@ describe('SidebarList', () => {
             type: DraggingStateTypes.CATEGORY,
         };
 
-        wrapper.instance().onBeforeCapture(categoryBefore);
+        const instance = wrapper.instance() as SidebarListComponent;
+
+        instance.onBeforeCapture(categoryBefore);
         expect(baseProps.actions.setDraggingState).toHaveBeenCalledWith(expectedCategoryBefore);
 
         const channelBefore = {
@@ -245,14 +249,15 @@ describe('SidebarList', () => {
             type: DraggingStateTypes.CHANNEL,
         };
 
-        wrapper.instance().onBeforeCapture(channelBefore);
+        instance.onBeforeCapture(channelBefore);
         expect(baseProps.actions.setDraggingState).toHaveBeenCalledWith(expectedChannelBefore);
     });
 
     test('should call correct action on dropping item', () => {
-        const wrapper = shallow<SidebarList>(
+        const wrapper = shallowWithIntl(
             <SidebarList {...baseProps}/>,
         );
+        const instance = wrapper.instance() as SidebarListComponent;
 
         const categoryResult: DropResult = {
             reason: 'DROP',
@@ -269,7 +274,7 @@ describe('SidebarList', () => {
             mode: 'SNAP' as MovementMode,
         };
 
-        wrapper.instance().onDragEnd(categoryResult);
+        instance.onDragEnd(categoryResult);
         expect(baseProps.actions.moveCategory).toHaveBeenCalledWith(baseProps.currentTeam.id, categoryResult.draggableId, categoryResult.destination!.index);
 
         const channelResult: DropResult = {
@@ -287,7 +292,7 @@ describe('SidebarList', () => {
             mode: 'SNAP' as MovementMode,
         };
 
-        wrapper.instance().onDragEnd(channelResult);
+        instance.onDragEnd(channelResult);
         expect(baseProps.actions.moveChannelsInSidebar).toHaveBeenCalledWith(channelResult.destination!.droppableId, channelResult.destination!.index, channelResult.draggableId);
     });
 });
diff --git a/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.tsx b/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.tsx
index 0272847787..a854d7b599 100644
--- a/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.tsx
+++ b/webapp/channels/src/components/sidebar/sidebar_list/sidebar_list.tsx
@@ -8,7 +8,7 @@ import type {CSSProperties} from 'react';
 import {DragDropContext, Droppable} from 'react-beautiful-dnd';
 import type {DropResult, DragStart, BeforeCapture} from 'react-beautiful-dnd';
 import Scrollbars from 'react-custom-scrollbars';
-import {FormattedMessage} from 'react-intl';
+import {FormattedMessage, injectIntl, type WrappedComponentProps} from 'react-intl';
 import {SpringSystem} from 'rebound';
 import type {Spring} from 'rebound';
 
@@ -26,7 +26,7 @@ import SidebarCategory from 'components/sidebar/sidebar_category';
 import {findNextUnreadChannelId} from 'utils/channel_utils';
 import {Constants, DraggingStates, DraggingStateTypes} from 'utils/constants';
 import {isKeyPressed, cmdOrCtrlPressed} from 'utils/keyboard';
-import {localizeMessage, mod} from 'utils/utils';
+import {mod} from 'utils/utils';
 
 import type {DraggingState} from 'types/store';
 import type {StaticPage} from 'types/store/lhs';
@@ -74,7 +74,7 @@ export function renderThumbVertical(props: React.HTMLProps<HTMLDivElement>) {
 
 const scrollbarStyles: CSSProperties = {position: 'absolute'};
 
-type Props = {
+type Props = WrappedComponentProps & {
     currentTeam?: Team;
     currentChannelId: string;
     categories: ChannelCategory[];
@@ -122,7 +122,7 @@ const categoryHeaderHeight = 32;
 // that the channel is not under the unread indicator.
 const scrollMarginWithUnread = 55;
 
-export default class SidebarList extends React.PureComponent<Props, State> {
+export class SidebarList extends React.PureComponent<Props, State> {
     channelRefs: Map<string, HTMLLIElement>;
     scrollbar: React.RefObject<Scrollbars>;
     animate: SpringSystem;
@@ -547,7 +547,7 @@ export default class SidebarList extends React.PureComponent<Props, State> {
             />
         );
 
-        const ariaLabel = localizeMessage({id: 'accessibility.sections.lhsList', defaultMessage: 'channel sidebar region'});
+        const ariaLabel = this.props.intl.formatMessage({id: 'accessibility.sections.lhsList', defaultMessage: 'channel sidebar region'});
 
         return (
 
@@ -602,3 +602,5 @@ export default class SidebarList extends React.PureComponent<Props, State> {
         );
     }
 }
+
+export default injectIntl(SidebarList);
diff --git a/webapp/channels/src/components/single_image_view/__snapshots__/single_image_view.test.tsx.snap b/webapp/channels/src/components/single_image_view/__snapshots__/single_image_view.test.tsx.snap
index fe08bd7996..f9ca68e61e 100644
--- a/webapp/channels/src/components/single_image_view/__snapshots__/single_image_view.test.tsx.snap
+++ b/webapp/channels/src/components/single_image_view/__snapshots__/single_image_view.test.tsx.snap
@@ -33,7 +33,7 @@ exports[`components/SingleImageView permalink preview should render with permali
         <div
           className="image-permalink"
         >
-          <SizeAwareImage
+          <injectIntl(SizeAwareImage)
             className="image-permalink"
             dimensions={
               Object {
@@ -108,7 +108,7 @@ exports[`components/SingleImageView should match snapshot 1`] = `
         <div
           className=""
         >
-          <SizeAwareImage
+          <injectIntl(SizeAwareImage)
             className=""
             dimensions={
               Object {
@@ -183,7 +183,7 @@ exports[`components/SingleImageView should match snapshot 2`] = `
         <div
           className=""
         >
-          <SizeAwareImage
+          <injectIntl(SizeAwareImage)
             className=""
             dimensions={
               Object {
@@ -262,7 +262,7 @@ exports[`components/SingleImageView should match snapshot, SVG image 1`] = `
         <div
           className=""
         >
-          <SizeAwareImage
+          <injectIntl(SizeAwareImage)
             className=""
             dimensions={
               Object {
@@ -341,7 +341,7 @@ exports[`components/SingleImageView should match snapshot, SVG image 2`] = `
         <div
           className=""
         >
-          <SizeAwareImage
+          <injectIntl(SizeAwareImage)
             className=""
             dimensions={
               Object {
@@ -416,7 +416,7 @@ exports[`components/SingleImageView should set loaded state on callback of onIma
         <div
           className=""
         >
-          <SizeAwareImage
+          <injectIntl(SizeAwareImage)
             className=""
             dimensions={
               Object {
diff --git a/webapp/channels/src/components/single_image_view/single_image_view.test.tsx b/webapp/channels/src/components/single_image_view/single_image_view.test.tsx
index f1cb54aa84..d88cc4e038 100644
--- a/webapp/channels/src/components/single_image_view/single_image_view.test.tsx
+++ b/webapp/channels/src/components/single_image_view/single_image_view.test.tsx
@@ -57,7 +57,7 @@ describe('components/SingleImageView', () => {
             <SingleImageView {...baseProps}/>,
         );
 
-        wrapper.find('SizeAwareImage').at(0).simulate('click', {preventDefault: () => {}});
+        wrapper.find(SizeAwareImage).at(0).simulate('click', {preventDefault: () => { }});
         expect(baseProps.actions.openModal).toHaveBeenCalledTimes(1);
     });
 
diff --git a/webapp/channels/src/components/size_aware_image.test.tsx b/webapp/channels/src/components/size_aware_image.test.tsx
index 9d7861b730..d700e69056 100644
--- a/webapp/channels/src/components/size_aware_image.test.tsx
+++ b/webapp/channels/src/components/size_aware_image.test.tsx
@@ -1,19 +1,18 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-import {mount, shallow} from 'enzyme';
 import React from 'react';
 import {Provider} from 'react-redux';
 
 import LoadingImagePreview from 'components/loading_image_preview';
-import SizeAwareImage from 'components/size_aware_image';
-import type {Props} from 'components/size_aware_image';
+import SizeAwareImage, {SizeAwareImage as SizeAwareImageComponent} from 'components/size_aware_image';
 
+import {shallowWithIntl, mountWithIntl} from 'tests/helpers/intl-test-helper';
 import mockStore from 'tests/test_store';
 import {TestHelper} from 'utils/test_helper';
 
 describe('components/SizeAwareImage', () => {
-    const baseProps: Props = {
+    const baseProps = {
         dimensions: {
             height: 200,
             width: 300,
@@ -41,17 +40,17 @@ describe('components/SizeAwareImage', () => {
     });
 
     test('should render an svg when first mounted with dimensions and img display set to none', () => {
-        const wrapper = mount(<Provider store={store}><SizeAwareImage {...baseProps}/></Provider>);
+        const wrapper = mountWithIntl(<Provider store={store}><SizeAwareImage {...baseProps}/></Provider>);
 
         // since download and copy icons use svgs now, attachment svg should be searched as a direct child of image-loading__container
-        const viewBox = wrapper.find(SizeAwareImage).find('.image-loading__container').children().filter('svg').prop('viewBox');
+        const viewBox = wrapper.find(SizeAwareImageComponent).find('.image-loading__container').children().filter('svg').prop('viewBox');
         expect(viewBox).toEqual('0 0 300 200');
         const style = wrapper.find('.file-preview__button').prop('style');
         expect(style).toHaveProperty('display', 'none');
     });
 
     test('img should have inherited class name from prop', () => {
-        const wrapper = mount(<Provider store={store}><SizeAwareImage {...{...baseProps, className: 'imgClass'}}/></Provider>);
+        const wrapper = mountWithIntl(<Provider store={store}><SizeAwareImage {...{...baseProps, className: 'imgClass'}}/></Provider>);
 
         const className = wrapper.find('img').prop('className');
         expect(className).toEqual('imgClass');
@@ -63,7 +62,7 @@ describe('components/SizeAwareImage', () => {
             showLoader: true,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
         expect(wrapper.find(LoadingImagePreview).exists()).toEqual(true);
         expect(wrapper).toMatchSnapshot();
     });
@@ -78,17 +77,17 @@ describe('components/SizeAwareImage', () => {
             }),
         };
 
-        const wrapper = mount(<Provider store={store}><SizeAwareImage {...props}/></Provider>);
+        const wrapper = mountWithIntl(<Provider store={store}><SizeAwareImage {...props}/></Provider>);
 
-        wrapper.find(SizeAwareImage).setState({loaded: false, error: false});
+        wrapper.find(SizeAwareImageComponent).setState({loaded: false, error: false});
 
         const src = wrapper.find('.image-loading__container img').prop('src');
         expect(src).toEqual('data:mime_type;base64,mini_preview');
     });
 
     test('should have display set to initial in loaded state', () => {
-        const wrapper = mount(<Provider store={store}><SizeAwareImage {...baseProps}/></Provider>);
-        wrapper.find(SizeAwareImage).setState({loaded: true, error: false});
+        const wrapper = mountWithIntl(<Provider store={store}><SizeAwareImage {...baseProps}/></Provider>);
+        wrapper.find(SizeAwareImageComponent).setState({loaded: true, error: false});
 
         const style = wrapper.find('.file-preview__button').prop('style');
         expect(style).toHaveProperty('display', 'inline-block');
@@ -98,9 +97,9 @@ describe('components/SizeAwareImage', () => {
         const props = {...baseProps};
         Reflect.deleteProperty(props, 'dimensions');
 
-        const wrapper = mount(<Provider store={store}><SizeAwareImage {...props}/></Provider>);
+        const wrapper = mountWithIntl(<Provider store={store}><SizeAwareImage {...props}/></Provider>);
 
-        wrapper.find(SizeAwareImage).setState({error: false});
+        wrapper.find(SizeAwareImageComponent).setState({error: false});
 
         const src = wrapper.find('img').prop('src');
         expect(src).toEqual(baseProps.src);
@@ -110,7 +109,7 @@ describe('components/SizeAwareImage', () => {
         const height = 123;
         const width = 1234;
 
-        const wrapper = shallow<SizeAwareImage>(<SizeAwareImage {...baseProps}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...baseProps}/>);
 
         wrapper.find('img')?.prop('onLoad')?.({target: {naturalHeight: height, naturalWidth: width}} as unknown as React.SyntheticEvent<HTMLImageElement>);
         expect(wrapper.state('loaded')).toBe(true);
@@ -118,18 +117,18 @@ describe('components/SizeAwareImage', () => {
     });
 
     test('should call onImageLoadFail when image load fails and should have svg', () => {
-        const wrapper = mount(<Provider store={store}><SizeAwareImage {...baseProps}/></Provider>);
+        const wrapper = mountWithIntl(<Provider store={store}><SizeAwareImage {...baseProps}/></Provider>);
         const errorEvent = {
             target: {},
             currentTarget: {},
-            preventDefault: () => {},
-            stopPropagation: () => {},
+            preventDefault: () => { },
+            stopPropagation: () => { },
         } as React.SyntheticEvent<HTMLImageElement>;
-        wrapper.find(SizeAwareImage).find('img').prop('onError')?.(errorEvent);
+        wrapper.find(SizeAwareImageComponent).find('img').prop('onError')?.(errorEvent);
 
-        expect(wrapper.find(SizeAwareImage).state('error')).toBe(true);
-        expect(wrapper.find(SizeAwareImage).find('svg').exists()).toEqual(true);
-        expect(wrapper.find(SizeAwareImage).find(LoadingImagePreview).exists()).toEqual(false);
+        expect(wrapper.find(SizeAwareImageComponent).state('error')).toBe(true);
+        expect(wrapper.find(SizeAwareImageComponent).find('svg').exists()).toEqual(true);
+        expect(wrapper.find(SizeAwareImageComponent).find(LoadingImagePreview).exists()).toEqual(false);
     });
 
     test('should match snapshot when handleSmallImageContainer prop is passed', () => {
@@ -138,7 +137,7 @@ describe('components/SizeAwareImage', () => {
             handleSmallImageContainer: true,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
         expect(wrapper).toMatchSnapshot();
     });
 
@@ -148,7 +147,7 @@ describe('components/SizeAwareImage', () => {
             handleSmallImageContainer: true,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
 
         wrapper.instance().setState({isSmallImage: true});
 
@@ -163,7 +162,7 @@ describe('components/SizeAwareImage', () => {
             handleSmallImageContainer: true,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
 
         wrapper.instance().setState({isSmallImage: true, imageWidth: 220});
         expect(wrapper.find('div.small-image__container').prop('style')).
@@ -182,7 +181,7 @@ describe('components/SizeAwareImage', () => {
             handleSmallImageContainer: true,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
 
         wrapper.instance().setState({isSmallImage: true, imageWidth: 24});
 
@@ -195,7 +194,7 @@ describe('components/SizeAwareImage', () => {
             ...baseProps,
             fileURL,
         };
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
         expect(wrapper).toMatchSnapshot();
     });
 
@@ -205,7 +204,7 @@ describe('components/SizeAwareImage', () => {
             ...baseProps,
             fileURL,
         };
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
         expect(wrapper.find('.size-aware-image__download').prop('href')).toBe(fileURL);
     });
 
@@ -216,7 +215,7 @@ describe('components/SizeAwareImage', () => {
             fileURL,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
         expect(wrapper.state('linkCopyInProgress')).toBe(false);
         wrapper.find('.size-aware-image__copy_link').first().simulate('click');
         expect(wrapper.state('linkCopyInProgress')).toBe(true);
@@ -228,7 +227,7 @@ describe('components/SizeAwareImage', () => {
             enablePublicLink: false,
         };
 
-        const wrapper = shallow(<SizeAwareImage {...props}/>);
+        const wrapper = shallowWithIntl(<SizeAwareImage {...props}/>);
         expect(wrapper.find('button.size-aware-image__copy_link').exists()).toEqual(false);
     });
 });
diff --git a/webapp/channels/src/components/size_aware_image.tsx b/webapp/channels/src/components/size_aware_image.tsx
index 66bf85bf80..34fdba2e19 100644
--- a/webapp/channels/src/components/size_aware_image.tsx
+++ b/webapp/channels/src/components/size_aware_image.tsx
@@ -6,7 +6,8 @@
 import classNames from 'classnames';
 import React from 'react';
 import type {KeyboardEvent, MouseEvent, SyntheticEvent} from 'react';
-import {FormattedMessage} from 'react-intl';
+import {FormattedMessage, injectIntl} from 'react-intl';
+import type {WrappedComponentProps} from 'react-intl';
 
 import {DownloadOutlineIcon, LinkVariantIcon, CheckIcon} from '@mattermost/compass-icons/components';
 import type {FileInfo} from '@mattermost/types/files';
@@ -19,13 +20,13 @@ import LoadingImagePreview from 'components/loading_image_preview';
 import WithTooltip from 'components/with_tooltip';
 
 import {FileTypes} from 'utils/constants';
-import {localizeMessage, copyToClipboard, getFileType} from 'utils/utils';
+import {copyToClipboard, getFileType} from 'utils/utils';
 
 const MIN_IMAGE_SIZE = 48;
 const MIN_IMAGE_SIZE_FOR_INTERNAL_BUTTONS = 100;
 const MAX_IMAGE_HEIGHT = 350;
 
-export type Props = {
+export type Props = WrappedComponentProps & {
 
     /*
     * The source URL of the image
@@ -86,7 +87,7 @@ export type Props = {
     /**
     * Action to fetch public link of an image from server.
     */
-    getFilePublicLink?: () => Promise<ActionResult<{link: string}>>;
+    getFilePublicLink?: () => Promise<ActionResult<{ link: string }>>;
 
     /*
     * Prevents display of utility buttons when image in a location that makes them inappropriate
@@ -105,10 +106,10 @@ type State = {
 
 // SizeAwareImage is a component used for rendering images where the dimensions of the image are important for
 // ensuring that the page is laid out correctly.
-export default class SizeAwareImage extends React.PureComponent<Props, State> {
+export class SizeAwareImage extends React.PureComponent<Props, State> {
     public heightTimeout = 0;
     public mounted = false;
-    public timeout: NodeJS.Timeout|null = null;
+    public timeout: NodeJS.Timeout | null = null;
 
     constructor(props: Props) {
         super(props);
@@ -199,6 +200,7 @@ export default class SizeAwareImage extends React.PureComponent<Props, State> {
             src,
             fileURL,
             enablePublicLink,
+            intl,
             ...props
         } = this.props;
         Reflect.deleteProperty(props, 'showLoader');
@@ -210,8 +212,9 @@ export default class SizeAwareImage extends React.PureComponent<Props, State> {
         Reflect.deleteProperty(props, 'onClick');
         Reflect.deleteProperty(props, 'hideUtilities');
         Reflect.deleteProperty(props, 'getFilePublicLink');
+        Reflect.deleteProperty(props, 'intl');
 
-        let ariaLabelImage = localizeMessage({id: 'file_attachment.thumbnail', defaultMessage: 'file thumbnail'});
+        let ariaLabelImage = intl.formatMessage({id: 'file_attachment.thumbnail', defaultMessage: 'file thumbnail'});
         if (fileInfo) {
             ariaLabelImage += ` ${fileInfo.name}`.toLowerCase();
         }
@@ -269,7 +272,7 @@ export default class SizeAwareImage extends React.PureComponent<Props, State> {
                     className={classNames('style--none', 'size-aware-image__copy_link', {
                         'size-aware-image__copy_link--recently_copied': this.state.linkCopiedRecently,
                     })}
-                    aria-label={localizeMessage({id: 'single_image_view.copy_link_tooltip', defaultMessage: 'Copy link'})}
+                    aria-label={intl.formatMessage({id: 'single_image_view.copy_link_tooltip', defaultMessage: 'Copy link'})}
                     onClick={this.copyLinkToAsset}
                 >
                     {this.state.linkCopiedRecently ? (
@@ -306,7 +309,7 @@ export default class SizeAwareImage extends React.PureComponent<Props, State> {
                     className='style--none size-aware-image__download'
                     download={true}
                     role={this.isInternalImage ? 'button' : undefined}
-                    aria-label={localizeMessage({id: 'single_image_view.download_tooltip', defaultMessage: 'Download'})}
+                    aria-label={intl.formatMessage({id: 'single_image_view.download_tooltip', defaultMessage: 'Download'})}
                 >
                     <DownloadOutlineIcon
                         className={'style--none'}
@@ -396,7 +399,7 @@ export default class SizeAwareImage extends React.PureComponent<Props, State> {
             fileInfo,
         } = this.props;
 
-        let ariaLabelImage = localizeMessage({id: 'file_attachment.thumbnail', defaultMessage: 'file thumbnail'});
+        let ariaLabelImage = this.props.intl.formatMessage({id: 'file_attachment.thumbnail', defaultMessage: 'file thumbnail'});
         if (fileInfo) {
             ariaLabelImage += ` ${fileInfo.name}`.toLowerCase();
         }
@@ -500,3 +503,5 @@ export default class SizeAwareImage extends React.PureComponent<Props, State> {
         );
     }
 }
+
+export default injectIntl(SizeAwareImage);
diff --git a/webapp/channels/src/components/status_dropdown/__snapshots__/status_dropdown.test.tsx.snap b/webapp/channels/src/components/status_dropdown/__snapshots__/status_dropdown.test.tsx.snap
index 203d60e8db..56c517c090 100644
--- a/webapp/channels/src/components/status_dropdown/__snapshots__/status_dropdown.test.tsx.snap
+++ b/webapp/channels/src/components/status_dropdown/__snapshots__/status_dropdown.test.tsx.snap
@@ -112,7 +112,7 @@ exports[`components/StatusDropdown should match snapshot in default state 1`] =
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -125,9 +125,7 @@ exports[`components/StatusDropdown should match snapshot in default state 1`] =
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -190,7 +188,6 @@ exports[`components/StatusDropdown should match snapshot in default state 1`] =
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -439,7 +436,7 @@ exports[`components/StatusDropdown should match snapshot with custom status and
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -452,9 +449,7 @@ exports[`components/StatusDropdown should match snapshot with custom status and
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -517,7 +512,6 @@ exports[`components/StatusDropdown should match snapshot with custom status and
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -729,7 +723,7 @@ exports[`components/StatusDropdown should match snapshot with custom status enab
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -742,9 +736,7 @@ exports[`components/StatusDropdown should match snapshot with custom status enab
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -807,7 +799,6 @@ exports[`components/StatusDropdown should match snapshot with custom status enab
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -1019,7 +1010,7 @@ exports[`components/StatusDropdown should match snapshot with custom status expi
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -1032,9 +1023,7 @@ exports[`components/StatusDropdown should match snapshot with custom status expi
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -1097,7 +1086,6 @@ exports[`components/StatusDropdown should match snapshot with custom status expi
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -1310,7 +1298,7 @@ exports[`components/StatusDropdown should match snapshot with custom status puls
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -1323,9 +1311,7 @@ exports[`components/StatusDropdown should match snapshot with custom status puls
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -1388,7 +1374,6 @@ exports[`components/StatusDropdown should match snapshot with custom status puls
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -1576,7 +1561,7 @@ exports[`components/StatusDropdown should match snapshot with profile picture UR
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -1589,9 +1574,7 @@ exports[`components/StatusDropdown should match snapshot with profile picture UR
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -1654,7 +1637,6 @@ exports[`components/StatusDropdown should match snapshot with profile picture UR
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -1834,7 +1816,7 @@ exports[`components/StatusDropdown should match snapshot with status dropdown op
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -1847,9 +1829,7 @@ exports[`components/StatusDropdown should match snapshot with status dropdown op
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -1912,7 +1892,6 @@ exports[`components/StatusDropdown should match snapshot with status dropdown op
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -2124,7 +2103,7 @@ exports[`components/StatusDropdown should not show clear status button when cust
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -2137,9 +2116,7 @@ exports[`components/StatusDropdown should not show clear status button when cust
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -2202,7 +2179,6 @@ exports[`components/StatusDropdown should not show clear status button when cust
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
@@ -2451,7 +2427,7 @@ exports[`components/StatusDropdown should show clear status button when custom s
         show={true}
         text="Away"
       />
-      <SubMenuItem
+      <injectIntl(SubMenuItem)
         action={[Function]}
         ariaLabel="Do not disturb. Disables all notifications"
         direction="left"
@@ -2464,9 +2440,7 @@ exports[`components/StatusDropdown should show clear status button when custom s
         }
         id="status-menu-dnd"
         openUp={false}
-        renderSelected={true}
         rightDecorator={false}
-        show={true}
         subMenu={
           Array [
             Object {
@@ -2529,7 +2503,6 @@ exports[`components/StatusDropdown should show clear status button when custom s
             },
           ]
         }
-        subMenuClass="pl-4"
         text="Do not disturb"
       />
       <MenuItemAction
diff --git a/webapp/channels/src/components/suggestion/switch_channel_provider.tsx b/webapp/channels/src/components/suggestion/switch_channel_provider.tsx
index d96b40d579..28dd5670ee 100644
--- a/webapp/channels/src/components/suggestion/switch_channel_provider.tsx
+++ b/webapp/channels/src/components/suggestion/switch_channel_provider.tsx
@@ -3,7 +3,8 @@
 
 import classNames from 'classnames';
 import React from 'react';
-import {defineMessages} from 'react-intl';
+import {defineMessages, injectIntl} from 'react-intl';
+import type {WrappedComponentProps} from 'react-intl';
 import {connect, useSelector} from 'react-redux';
 
 import type {Channel, ChannelMembership} from '@mattermost/types/channels';
@@ -59,6 +60,7 @@ import BotTag from 'components/widgets/tag/bot_tag';
 import GuestTag from 'components/widgets/tag/guest_tag';
 
 import {Constants, StoragePrefixes} from 'utils/constants';
+import {getIntl} from 'utils/i18n';
 import * as Utils from 'utils/utils';
 
 import type {GlobalState} from 'types/store';
@@ -111,7 +113,7 @@ interface WrappedChannel {
     unread_mentions?: number;
 }
 
-type Props = SuggestionProps<WrappedChannel> & {
+type Props = SuggestionProps<WrappedChannel> & WrappedComponentProps & {
     channelMember: ChannelMembership;
     collapsedThreads: boolean;
     dmChannelTeammate?: UserProfile;
@@ -220,7 +222,7 @@ const SwitchChannelSuggestion = React.forwardRef<HTMLDivElement, Props>((props,
 
         let deactivated = '';
         if (teammate.delete_at) {
-            deactivated = (' - ' + Utils.localizeMessage({id: 'channel_switch_modal.deactivated', defaultMessage: 'Deactivated'}));
+            deactivated = (' - ' + props.intl.formatMessage({id: 'channel_switch_modal.deactivated', defaultMessage: 'Deactivated'}));
         }
 
         if (channel.display_name && !(teammate && teammate.is_bot)) {
@@ -228,7 +230,7 @@ const SwitchChannelSuggestion = React.forwardRef<HTMLDivElement, Props>((props,
         } else {
             name = teammate.username;
             if (teammate.id === currentUserId) {
-                name += (' ' + Utils.localizeMessage({id: 'suggestion.user.isCurrent', defaultMessage: '(you)'}));
+                name += (' ' + props.intl.formatMessage({id: 'suggestion.user.isCurrent', defaultMessage: '(you)'}));
             }
             description = deactivated;
         }
@@ -317,7 +319,7 @@ function mapStateToPropsForSwitchChannelSuggestion(state: GlobalState, ownProps:
     };
 }
 
-const ConnectedSwitchChannelSuggestion = connect(mapStateToPropsForSwitchChannelSuggestion, null, null, {forwardRef: true})(SwitchChannelSuggestion);
+const ConnectedSwitchChannelSuggestion = connect(mapStateToPropsForSwitchChannelSuggestion, null, null, {forwardRef: true})(injectIntl(SwitchChannelSuggestion));
 
 let prefix = '';
 
@@ -528,6 +530,8 @@ export default class SwitchChannelProvider extends Provider {
     }
 
     userWrappedChannel(user: UserProfile, channel?: ChannelItem): WrappedChannel {
+        const intl = getIntl();
+
         let displayName = '';
         const currentUserId = getCurrentUserId(this.store.getState());
 
@@ -545,7 +549,7 @@ export default class SwitchChannelProvider extends Provider {
         }
 
         if (user.id === currentUserId && displayName) {
-            displayName += (' ' + Utils.localizeMessage({id: 'suggestion.user.isCurrent', defaultMessage: '(you)'}));
+            displayName += (' ' + intl.formatMessage({id: 'suggestion.user.isCurrent', defaultMessage: '(you)'}));
         }
 
         return {
diff --git a/webapp/channels/src/components/team_members_dropdown/__snapshots__/team_members_dropdown.test.tsx.snap b/webapp/channels/src/components/team_members_dropdown/__snapshots__/team_members_dropdown.test.tsx.snap
index ea5b958f6e..72c91a1785 100644
--- a/webapp/channels/src/components/team_members_dropdown/__snapshots__/team_members_dropdown.test.tsx.snap
+++ b/webapp/channels/src/components/team_members_dropdown/__snapshots__/team_members_dropdown.test.tsx.snap
@@ -30,12 +30,22 @@ exports[`components/team_members_dropdown should match snapshot for a bot with g
         id="removeFromTeam"
         onClick={[Function]}
         show={true}
-        text="Remove From Team"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Remove from Team"
+            id="team_members_dropdown.leave_team"
+          />
+        }
       />
       <MenuItemAction
         onClick={[Function]}
         show={true}
-        text="Make Member"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Make Team Member"
+            id="team_members_dropdown.makeMember"
+          />
+        }
       />
     </Menu>
   </div>
@@ -72,12 +82,22 @@ exports[`components/team_members_dropdown should match snapshot for team_members
         id="removeFromTeam"
         onClick={[Function]}
         show={true}
-        text="Remove From Team"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Remove from Team"
+            id="team_members_dropdown.leave_team"
+          />
+        }
       />
       <MenuItemAction
         onClick={[Function]}
         show={true}
-        text="Make Member"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Make Team Member"
+            id="team_members_dropdown.makeMember"
+          />
+        }
       />
     </Menu>
   </div>
@@ -114,12 +134,22 @@ exports[`components/team_members_dropdown should match snapshot opening dropdown
         id="removeFromTeam"
         onClick={[Function]}
         show={true}
-        text="Remove From Team"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Remove from Team"
+            id="team_members_dropdown.leave_team"
+          />
+        }
       />
       <MenuItemAction
         onClick={[Function]}
         show={true}
-        text="Make Member"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Make Team Member"
+            id="team_members_dropdown.makeMember"
+          />
+        }
       />
     </Menu>
   </div>
@@ -155,7 +185,12 @@ exports[`components/team_members_dropdown should match snapshot with group-const
       <MenuItemAction
         onClick={[Function]}
         show={true}
-        text="Make Member"
+        text={
+          <Memo(MemoizedFormattedMessage)
+            defaultMessage="Make Team Member"
+            id="team_members_dropdown.makeMember"
+          />
+        }
       />
     </Menu>
   </div>
diff --git a/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.test.tsx b/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.test.tsx
index 8f380655c9..436e70cc7c 100644
--- a/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.test.tsx
+++ b/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.test.tsx
@@ -1,11 +1,11 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-import {shallow} from 'enzyme';
 import React from 'react';
 
 import TeamMembersDropdown from 'components/team_members_dropdown/team_members_dropdown';
 
+import {shallowWithIntl} from 'tests/helpers/intl-test-helper';
 import {TestHelper} from 'utils/test_helper';
 
 describe('components/team_members_dropdown', () => {
@@ -40,14 +40,14 @@ describe('components/team_members_dropdown', () => {
     };
 
     test('should match snapshot for team_members_dropdown', () => {
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <TeamMembersDropdown {...baseProps}/>,
         );
         expect(wrapper).toMatchSnapshot();
     });
 
     test('should match snapshot opening dropdown upwards', () => {
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <TeamMembersDropdown
                 {...baseProps}
                 index={4}
@@ -59,7 +59,7 @@ describe('components/team_members_dropdown', () => {
 
     test('should match snapshot with group-constrained team', () => {
         baseProps.currentTeam.group_constrained = true;
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <TeamMembersDropdown {...baseProps}/>,
         );
         expect(wrapper).toMatchSnapshot();
@@ -68,7 +68,7 @@ describe('components/team_members_dropdown', () => {
     test('should match snapshot for a bot with group-constrained team', () => {
         baseProps.currentTeam.group_constrained = true;
         baseProps.user = bot;
-        const wrapper = shallow(
+        const wrapper = shallowWithIntl(
             <TeamMembersDropdown {...baseProps}/>,
         );
         expect(wrapper).toMatchSnapshot();
diff --git a/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.tsx b/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.tsx
index 207793be52..1e911dd705 100644
--- a/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.tsx
+++ b/webapp/channels/src/components/team_members_dropdown/team_members_dropdown.tsx
@@ -2,7 +2,8 @@
 // See LICENSE.txt for license information.
 
 import React from 'react';
-import {FormattedMessage} from 'react-intl';
+import {FormattedMessage, injectIntl} from 'react-intl';
+import type {WrappedComponentProps} from 'react-intl';
 
 import type {Team, TeamMembership} from '@mattermost/types/teams';
 import type {UserProfile} from '@mattermost/types/users';
@@ -17,11 +18,10 @@ import Menu from 'components/widgets/menu/menu';
 import MenuWrapper from 'components/widgets/menu/menu_wrapper';
 
 import {getHistory} from 'utils/browser_history';
-import * as Utils from 'utils/utils';
 
 const ROWS_FROM_BOTTOM_TO_OPEN_UP = 3;
 
-type Props = {
+type Props = WrappedComponentProps & {
     user: UserProfile;
     currentUser: UserProfile;
     teamMember: TeamMembership;
@@ -50,7 +50,7 @@ type State = {
     role: string|null;
 }
 
-export default class TeamMembersDropdown extends React.PureComponent<Props, State> {
+class TeamMembersDropdown extends React.PureComponent<Props, State> {
     constructor(props: Props) {
         super(props);
 
@@ -141,7 +141,7 @@ export default class TeamMembersDropdown extends React.PureComponent<Props, Stat
             );
         }
 
-        const {currentTeam, teamMember, user} = this.props;
+        const {currentTeam, teamMember, user, intl} = this.props;
 
         let currentRoles = null;
 
@@ -253,19 +253,34 @@ export default class TeamMembersDropdown extends React.PureComponent<Props, Stat
             <Menu.ItemAction
                 id='removeFromTeam'
                 onClick={this.handleRemoveFromTeam}
-                text={Utils.localizeMessage({id: 'team_members_dropdown.leave_team', defaultMessage: 'Remove From Team'})}
+                text={
+                    <FormattedMessage
+                        id='team_members_dropdown.leave_team'
+                        defaultMessage='Remove from Team'
+                    />
+                }
             />
         );
         const menuMakeAdmin = (
             <Menu.ItemAction
                 onClick={this.handleMakeAdmin}
-                text={Utils.localizeMessage({id: 'team_members_dropdown.makeAdmin', defaultMessage: 'Make Team Admin'})}
+                text={
+                    <FormattedMessage
+                        id='team_members_dropdown.makeAdmin'
+                        defaultMessage='Make Team Admin'
+                    />
+                }
             />
         );
         const menuMakeMember = (
             <Menu.ItemAction
                 onClick={this.handleMakeMember}
-                text={Utils.localizeMessage({id: 'team_members_dropdown.makeMember', defaultMessage: 'Make Member'})}
+                text={
+                    <FormattedMessage
+                        id='team_members_dropdown.makeMember'
+                        defaultMessage='Make Team Member'
+                    />
+                }
             />
         );
         return (
@@ -283,7 +298,7 @@ export default class TeamMembersDropdown extends React.PureComponent<Props, Stat
                     <Menu
                         openLeft={true}
                         openUp={openUp}
-                        ariaLabel={Utils.localizeMessage({id: 'team_members_dropdown.menuAriaLabel', defaultMessage: 'Change the role of a team member'})}
+                        ariaLabel={intl.formatMessage({id: 'team_members_dropdown.menuAriaLabel', defaultMessage: 'Change the role of a team member'})}
                     >
                         {canRemoveFromTeam ? menuRemove : null}
                         {showMakeAdmin ? menuMakeAdmin : null}
@@ -296,3 +311,5 @@ export default class TeamMembersDropdown extends React.PureComponent<Props, Stat
         );
     }
 }
+
+export default injectIntl(TeamMembersDropdown);
diff --git a/webapp/channels/src/components/team_sidebar/team_sidebar.tsx b/webapp/channels/src/components/team_sidebar/team_sidebar.tsx
index 4994763470..fab3dcacb2 100644
--- a/webapp/channels/src/components/team_sidebar/team_sidebar.tsx
+++ b/webapp/channels/src/components/team_sidebar/team_sidebar.tsx
@@ -6,7 +6,8 @@ import React from 'react';
 import {DragDropContext, Droppable} from 'react-beautiful-dnd';
 import type {DroppableProvided, DropResult} from 'react-beautiful-dnd';
 import Scrollbars from 'react-custom-scrollbars';
-import {FormattedMessage} from 'react-intl';
+import {injectIntl, FormattedMessage} from 'react-intl';
+import type {WrappedComponentProps} from 'react-intl';
 import type {RouteComponentProps} from 'react-router-dom';
 
 import type {Team} from '@mattermost/types/teams';
@@ -26,7 +27,7 @@ import * as Utils from 'utils/utils';
 
 import type {PropsFromRedux} from './index';
 
-export interface Props extends PropsFromRedux {
+export interface Props extends PropsFromRedux, WrappedComponentProps {
     location: RouteComponentProps['location'];
 }
 
@@ -62,7 +63,7 @@ export function renderThumbVertical(props: Props) {
     );
 }
 
-export default class TeamSidebar extends React.PureComponent<Props, State> {
+export class TeamSidebar extends React.PureComponent<Props, State> {
     constructor(props: Props) {
         super(props);
 
@@ -202,6 +203,8 @@ export default class TeamSidebar extends React.PureComponent<Props, State> {
     };
 
     render() {
+        const {intl} = this.props;
+
         const root: Element | null = document.querySelector('#root');
         if (this.props.myTeams.length <= 1) {
             root!.classList.remove('multi-teams');
@@ -246,7 +249,7 @@ export default class TeamSidebar extends React.PureComponent<Props, State> {
             <i
                 className='icon icon-plus'
                 role={'img'}
-                aria-label={Utils.localizeMessage({id: 'sidebar.team_menu.button.plusIcon', defaultMessage: 'Plus Icon'})}
+                aria-label={intl.formatMessage({id: 'sidebar.team_menu.button.plusIcon', defaultMessage: 'Plus Icon'})}
             />
         );
 
@@ -347,3 +350,5 @@ export default class TeamSidebar extends React.PureComponent<Props, State> {
         );
     }
 }
+
+export default injectIntl(TeamSidebar);
diff --git a/webapp/channels/src/components/user_groups_modal/user_groups_list/user_groups_list.tsx b/webapp/channels/src/components/user_groups_modal/user_groups_list/user_groups_list.tsx
index 72264d408a..fa087a45a9 100644
--- a/webapp/channels/src/components/user_groups_modal/user_groups_list/user_groups_list.tsx
+++ b/webapp/channels/src/components/user_groups_modal/user_groups_list/user_groups_list.tsx
@@ -2,7 +2,7 @@
 // See LICENSE.txt for license information.
 
 import React, {useCallback, useEffect, useRef, useState} from 'react';
-import {FormattedMessage} from 'react-intl';
+import {FormattedMessage, useIntl} from 'react-intl';
 import type {ListChildComponentProps} from 'react-window';
 import {VariableSizeList} from 'react-window';
 import InfiniteLoader from 'react-window-infinite-loader';
@@ -19,7 +19,6 @@ import Menu from 'components/widgets/menu/menu';
 import MenuWrapper from 'components/widgets/menu/menu_wrapper';
 
 import {ModalIdentifiers} from 'utils/constants';
-import * as Utils from 'utils/utils';
 
 import type {ModalData} from 'types/actions';
 
@@ -58,6 +57,7 @@ const UserGroupsList = (props: Props) => {
     const variableSizeListRef = useRef<VariableSizeList | null>(null);
     const [hasMounted, setHasMounted] = useState(false);
     const [overflowState, setOverflowState] = useState('overlay');
+    const {formatMessage} = useIntl();
 
     useEffect(() => {
         if (groups.length === 1) {
@@ -171,7 +171,7 @@ const UserGroupsList = (props: Props) => {
                                 openLeft={true}
                                 openUp={groupListOpenUp(index)}
                                 className={'group-actions-menu'}
-                                ariaLabel={Utils.localizeMessage({id: 'admin.user_item.menuAriaLabel', defaultMessage: 'User Actions Menu'})}
+                                ariaLabel={formatMessage({id: 'admin.user_item.menuAriaLabel', defaultMessage: 'User Actions Menu'})}
                             >
                                 <Menu.Group>
                                     <Menu.ItemAction
@@ -179,7 +179,7 @@ const UserGroupsList = (props: Props) => {
                                             goToViewGroupModal(group);
                                         }}
                                         icon={<i className='icon-account-multiple-outline'/>}
-                                        text={Utils.localizeMessage({id: 'user_groups_modal.viewGroup', defaultMessage: 'View Group'})}
+                                        text={formatMessage({id: 'user_groups_modal.viewGroup', defaultMessage: 'View Group'})}
                                         disabled={false}
                                     />
                                 </Menu.Group>
@@ -190,7 +190,7 @@ const UserGroupsList = (props: Props) => {
                                             archiveGroup(group.id);
                                         }}
                                         icon={<i className='icon-archive-outline'/>}
-                                        text={Utils.localizeMessage({id: 'user_groups_modal.archiveGroup', defaultMessage: 'Archive Group'})}
+                                        text={formatMessage({id: 'user_groups_modal.archiveGroup', defaultMessage: 'Archive Group'})}
                                         disabled={false}
                                         isDangerous={true}
                                     />
@@ -200,7 +200,7 @@ const UserGroupsList = (props: Props) => {
                                             restoreGroup(group.id);
                                         }}
                                         icon={<i className='icon-restore'/>}
-                                        text={Utils.localizeMessage({id: 'user_groups_modal.restoreGroup', defaultMessage: 'Restore Group'})}
+                                        text={formatMessage({id: 'user_groups_modal.restoreGroup', defaultMessage: 'Restore Group'})}
                                         disabled={false}
                                     />
                                 </Menu.Group>
diff --git a/webapp/channels/src/components/widgets/menu/menu_items/__snapshots__/submenu_item.test.tsx.snap b/webapp/channels/src/components/widgets/menu/menu_items/__snapshots__/submenu_item.test.tsx.snap
index 3261b549b9..b74506020f 100644
--- a/webapp/channels/src/components/widgets/menu/menu_items/__snapshots__/submenu_item.test.tsx.snap
+++ b/webapp/channels/src/components/widgets/menu/menu_items/__snapshots__/submenu_item.test.tsx.snap
@@ -5,6 +5,44 @@ exports[`components/widgets/menu/menu_items/submenu_item empty subMenu should ma
   action={[MockFunction]}
   direction="left"
   id="1"
+  intl={
+    Object {
+      "$t": [Function],
+      "defaultFormats": Object {},
+      "defaultLocale": "en",
+      "defaultRichTextElements": undefined,
+      "fallbackOnEmptyString": true,
+      "formatDate": [Function],
+      "formatDateTimeRange": [Function],
+      "formatDateToParts": [Function],
+      "formatDisplayName": [Function],
+      "formatList": [Function],
+      "formatListToParts": [Function],
+      "formatMessage": [Function],
+      "formatNumber": [Function],
+      "formatNumberToParts": [Function],
+      "formatPlural": [Function],
+      "formatRelativeTime": [Function],
+      "formatTime": [Function],
+      "formatTimeToParts": [Function],
+      "formats": Object {},
+      "formatters": Object {
+        "getDateTimeFormat": [Function],
+        "getDisplayNames": [Function],
+        "getListFormat": [Function],
+        "getMessageFormat": [Function],
+        "getNumberFormat": [Function],
+        "getPluralRules": [Function],
+        "getRelativeTimeFormat": [Function],
+      },
+      "locale": "en",
+      "messages": Object {},
+      "onError": [Function],
+      "onWarn": [Function],
+      "textComponent": "span",
+      "timeZone": "Etc/UTC",
+    }
+  }
   renderSelected={true}
   root={true}
   show={true}
@@ -59,6 +97,44 @@ exports[`components/widgets/menu/menu_items/submenu_item present subMenu should
   action={[MockFunction]}
   direction="left"
   id="1"
+  intl={
+    Object {
+      "$t": [Function],
+      "defaultFormats": Object {},
+      "defaultLocale": "en",
+      "defaultRichTextElements": undefined,
+      "fallbackOnEmptyString": true,
+      "formatDate": [Function],
+      "formatDateTimeRange": [Function],
+      "formatDateToParts": [Function],
+      "formatDisplayName": [Function],
+      "formatList": [Function],
+      "formatListToParts": [Function],
+      "formatMessage": [Function],
+      "formatNumber": [Function],
+      "formatNumberToParts": [Function],
+      "formatPlural": [Function],
+      "formatRelativeTime": [Function],
+      "formatTime": [Function],
+      "formatTimeToParts": [Function],
+      "formats": Object {},
+      "formatters": Object {
+        "getDateTimeFormat": [Function],
+        "getDisplayNames": [Function],
+        "getListFormat": [Function],
+        "getMessageFormat": [Function],
+        "getNumberFormat": [Function],
+        "getPluralRules": [Function],
+        "getRelativeTimeFormat": [Function],
+      },
+      "locale": "en",
+      "messages": Object {},
+      "onError": [Function],
+      "onWarn": [Function],
+      "textComponent": "span",
+      "timeZone": "Etc/UTC",
+    }
+  }
   renderSelected={true}
   root={true}
   show={true}
@@ -124,6 +200,44 @@ exports[`components/widgets/menu/menu_items/submenu_item present subMenu should
           <SubMenuItem
             direction="left"
             id="A"
+            intl={
+              Object {
+                "$t": [Function],
+                "defaultFormats": Object {},
+                "defaultLocale": "en",
+                "defaultRichTextElements": undefined,
+                "fallbackOnEmptyString": true,
+                "formatDate": [Function],
+                "formatDateTimeRange": [Function],
+                "formatDateToParts": [Function],
+                "formatDisplayName": [Function],
+                "formatList": [Function],
+                "formatListToParts": [Function],
+                "formatMessage": [Function],
+                "formatNumber": [Function],
+                "formatNumberToParts": [Function],
+                "formatPlural": [Function],
+                "formatRelativeTime": [Function],
+                "formatTime": [Function],
+                "formatTimeToParts": [Function],
+                "formats": Object {},
+                "formatters": Object {
+                  "getDateTimeFormat": [Function],
+                  "getDisplayNames": [Function],
+                  "getListFormat": [Function],
+                  "getMessageFormat": [Function],
+                  "getNumberFormat": [Function],
+                  "getPluralRules": [Function],
+                  "getRelativeTimeFormat": [Function],
+                },
+                "locale": "en",
+                "messages": Object {},
+                "onError": [Function],
+                "onWarn": [Function],
+                "textComponent": "span",
+                "timeZone": "Etc/UTC",
+              }
+            }
             renderSelected={true}
             root={false}
             show={true}
@@ -180,6 +294,44 @@ exports[`components/widgets/menu/menu_items/submenu_item present subMenu should
           <SubMenuItem
             direction="left"
             id="B"
+            intl={
+              Object {
+                "$t": [Function],
+                "defaultFormats": Object {},
+                "defaultLocale": "en",
+                "defaultRichTextElements": undefined,
+                "fallbackOnEmptyString": true,
+                "formatDate": [Function],
+                "formatDateTimeRange": [Function],
+                "formatDateToParts": [Function],
+                "formatDisplayName": [Function],
+                "formatList": [Function],
+                "formatListToParts": [Function],
+                "formatMessage": [Function],
+                "formatNumber": [Function],
+                "formatNumberToParts": [Function],
+                "formatPlural": [Function],
+                "formatRelativeTime": [Function],
+                "formatTime": [Function],
+                "formatTimeToParts": [Function],
+                "formats": Object {},
+                "formatters": Object {
+                  "getDateTimeFormat": [Function],
+                  "getDisplayNames": [Function],
+                  "getListFormat": [Function],
+                  "getMessageFormat": [Function],
+                  "getNumberFormat": [Function],
+                  "getPluralRules": [Function],
+                  "getRelativeTimeFormat": [Function],
+                },
+                "locale": "en",
+                "messages": Object {},
+                "onError": [Function],
+                "onWarn": [Function],
+                "textComponent": "span",
+                "timeZone": "Etc/UTC",
+              }
+            }
             renderSelected={true}
             root={false}
             show={true}
diff --git a/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.test.tsx b/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.test.tsx
index ac105073b1..a43f217b2f 100644
--- a/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.test.tsx
+++ b/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.test.tsx
@@ -1,13 +1,13 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
-import {mount} from 'enzyme';
 import React from 'react';
 
-import {render, screen, userEvent} from 'tests/react_testing_utils';
+import {mountWithIntl} from 'tests/helpers/intl-test-helper';
+import {screen, userEvent, renderWithContext} from 'tests/react_testing_utils';
 import Constants from 'utils/constants';
 
-import SubMenuItem from './submenu_item';
+import SubMenuItem, {SubMenuItem as SubMenuItemClass} from './submenu_item';
 
 jest.mock('../is_mobile_view_hack', () => ({
     isMobile: jest.fn(() => false),
@@ -15,7 +15,7 @@ jest.mock('../is_mobile_view_hack', () => ({
 
 describe('components/widgets/menu/menu_items/submenu_item', () => {
     test('empty subMenu should match snapshot', () => {
-        const wrapper = mount(
+        const wrapper = mountWithIntl(
             <SubMenuItem
                 key={'_pluginmenuitem'}
                 id={'1'}
@@ -30,7 +30,7 @@ describe('components/widgets/menu/menu_items/submenu_item', () => {
     });
 
     test('present subMenu should match snapshot with submenu', () => {
-        const wrapper = mount(
+        const wrapper = mountWithIntl(
             <SubMenuItem
                 key={'_pluginmenuitem'}
                 id={'1'}
@@ -60,7 +60,7 @@ describe('components/widgets/menu/menu_items/submenu_item', () => {
         const action2 = jest.fn();
         const action3 = jest.fn();
 
-        render(
+        renderWithContext(
             <SubMenuItem
                 key={'_pluginmenuitem'}
                 id={'Z'}
@@ -98,7 +98,7 @@ describe('components/widgets/menu/menu_items/submenu_item', () => {
     });
 
     test('should show/hide submenu based on keyboard commands', () => {
-        const wrapper = mount<SubMenuItem>(
+        const wrapper = mountWithIntl(
             <SubMenuItem
                 key={'_pluginmenuitem'}
                 id={'1'}
@@ -109,16 +109,18 @@ describe('components/widgets/menu/menu_items/submenu_item', () => {
             />,
         );
 
-        wrapper.instance().show = jest.fn();
-        wrapper.instance().hide = jest.fn();
+        const instance = wrapper.find(SubMenuItemClass).instance() as SubMenuItemClass;
 
-        wrapper.instance().handleKeyDown({keyCode: Constants.KeyCodes.ENTER[1]} as any);
-        expect(wrapper.instance().show).toHaveBeenCalled();
+        instance.show = jest.fn();
+        instance.hide = jest.fn();
 
-        wrapper.instance().handleKeyDown({keyCode: Constants.KeyCodes.LEFT[1]} as any);
-        expect(wrapper.instance().hide).toHaveBeenCalled();
+        instance.handleKeyDown({keyCode: Constants.KeyCodes.ENTER[1]} as any);
+        expect(instance.show).toHaveBeenCalled();
 
-        wrapper.instance().handleKeyDown({keyCode: Constants.KeyCodes.RIGHT[1]} as any);
-        expect(wrapper.instance().show).toHaveBeenCalled();
+        instance.handleKeyDown({keyCode: Constants.KeyCodes.LEFT[1]} as any);
+        expect(instance.hide).toHaveBeenCalled();
+
+        instance.handleKeyDown({keyCode: Constants.KeyCodes.RIGHT[1]} as any);
+        expect(instance.show).toHaveBeenCalled();
     });
 });
diff --git a/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.tsx b/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.tsx
index 4f63407e99..c07584c54e 100644
--- a/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.tsx
+++ b/webapp/channels/src/components/widgets/menu/menu_items/submenu_item.tsx
@@ -4,12 +4,13 @@
 import classNames from 'classnames';
 import React from 'react';
 import type {CSSProperties} from 'react';
+import {injectIntl} from 'react-intl';
+import type {WrappedComponentProps} from 'react-intl';
 
 import {showMobileSubMenuModal} from 'actions/global_actions';
 
 import Constants from 'utils/constants';
 import * as Keyboard from 'utils/keyboard';
-import * as Utils from 'utils/utils';
 
 import type {Menu} from 'types/store/plugins';
 
@@ -38,7 +39,7 @@ import './menu_item.scss';
 // }
 // Submenus can contain Submenus as well
 
-export type Props = {
+export type Props = WrappedComponentProps & {
     id?: string;
     postId?: string;
     text: React.ReactNode;
@@ -68,12 +69,12 @@ type State = {
 /**
  * @deprecated Use the "webapp/channels/src/components/menu" instead.
  */
-export default class SubMenuItem extends React.PureComponent<Props, State> {
+export class SubMenuItem extends React.PureComponent<Props, State> {
     private node: React.RefObject<HTMLLIElement>;
 
     public static defaultProps = {
         show: true,
-        direction: 'left',
+        direction: 'left' as const,
         subMenuClass: 'pl-4',
         renderSelected: true,
     };
@@ -149,7 +150,7 @@ export default class SubMenuItem extends React.PureComponent<Props, State> {
     };
 
     public render() {
-        const {id, postId, text, selectedValueText, subMenu, icon, filter, ariaLabel, direction, styleSelectableItem, extraText, renderSelected, rightDecorator, tabIndex} = this.props;
+        const {id, postId, text, selectedValueText, subMenu, icon, filter, ariaLabel, direction, styleSelectableItem, extraText, renderSelected, rightDecorator, tabIndex, intl} = this.props;
         const isMobile = isMobileViewHack();
 
         if (filter && !filter(id)) {
@@ -191,7 +192,7 @@ export default class SubMenuItem extends React.PureComponent<Props, State> {
                         const hasDivider = s.id === 'ChannelMenu-moveToDivider';
                         let aria = ariaLabel;
                         if (s.action) {
-                            aria = s.text === selectedValueText ? s.text + ' ' + Utils.localizeMessage({id: 'sidebar.menu.item.selected', defaultMessage: 'selected'}) : s.text + ' ' + Utils.localizeMessage({id: 'sidebar.menu.item.notSelected', defaultMessage: 'not selected'});
+                            aria = s.text === selectedValueText ? s.text + ' ' + intl.formatMessage({id: 'sidebar.menu.item.selected', defaultMessage: 'selected'}) : s.text + ' ' + intl.formatMessage({id: 'sidebar.menu.item.notSelected', defaultMessage: 'not selected'});
                         }
                         return (
                             <span
@@ -213,6 +214,7 @@ export default class SubMenuItem extends React.PureComponent<Props, State> {
                                     direction={s.direction}
                                     isHeader={s.isHeader}
                                     tabIndex={1}
+                                    intl={this.props.intl}
                                 />
                                 {s.text === selectedValueText && <span className='sorting-menu-checkbox'>
                                     <i className='icon-check'/>
@@ -248,7 +250,7 @@ export default class SubMenuItem extends React.PureComponent<Props, State> {
                             <span
                                 id={'channelHeaderDropdownIconRight_' + id}
                                 className={classNames([`fa fa-angle-right SubMenu__icon-right${hasSubmenu ? '' : '-empty'}`, {mobile: isMobile}])}
-                                aria-label={Utils.localizeMessage({id: 'post_info.submenu.icon', defaultMessage: 'submenu icon'}).toLowerCase()}
+                                aria-label={intl.formatMessage({id: 'post_info.submenu.icon', defaultMessage: 'submenu icon'}).toLowerCase()}
                             />
                         }
                     </div>
@@ -259,3 +261,5 @@ export default class SubMenuItem extends React.PureComponent<Props, State> {
         );
     }
 }
+
+export default injectIntl(SubMenuItem);
diff --git a/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/__snapshots__/submenu_modal.test.tsx.snap b/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/__snapshots__/submenu_modal.test.tsx.snap
index 45e4970d3d..cf706f2028 100644
--- a/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/__snapshots__/submenu_modal.test.tsx.snap
+++ b/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/__snapshots__/submenu_modal.test.tsx.snap
@@ -44,25 +44,18 @@ exports[`components/submenu_modal should match snapshot 1`] = `
         ariaLabel="mobile submenu"
         openLeft={true}
       >
-        <SubMenuItem
+        <injectIntl(SubMenuItem)
           action={[MockFunction]}
-          direction="left"
           id="A"
           key="A"
-          renderSelected={true}
           root={false}
-          show={true}
-          subMenuClass="pl-4"
           text="Text A"
         />
-        <SubMenuItem
+        <injectIntl(SubMenuItem)
           action={[MockFunction]}
-          direction="left"
           id="B"
           key="B"
-          renderSelected={true}
           root={false}
-          show={true}
           subMenu={
             Array [
               Object {
@@ -73,7 +66,6 @@ exports[`components/submenu_modal should match snapshot 1`] = `
               },
             ]
           }
-          subMenuClass="pl-4"
           text="Text B"
         />
       </Menu>
diff --git a/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/submenu_modal.test.tsx b/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/submenu_modal.test.tsx
index 679fe3b8ed..2db5c64430 100644
--- a/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/submenu_modal.test.tsx
+++ b/webapp/channels/src/components/widgets/menu/menu_modals/submenu_modal/submenu_modal.test.tsx
@@ -6,8 +6,7 @@ import {shallow} from 'enzyme';
 import React from 'react';
 import {Modal} from 'react-bootstrap';
 
-import {withIntl} from 'tests/helpers/intl-test-helper';
-import {render, screen, userEvent} from 'tests/react_testing_utils';
+import {renderWithContext, screen, userEvent} from 'tests/react_testing_utils';
 
 import SubMenuModal from './submenu_modal';
 
@@ -16,8 +15,8 @@ jest.mock('../../is_mobile_view_hack', () => ({
 }));
 
 (global as any).MutationObserver = class {
-    public disconnect() {}
-    public observe() {}
+    public disconnect() { }
+    public observe() { }
 };
 
 describe('components/submenu_modal', () => {
@@ -58,9 +57,9 @@ describe('components/submenu_modal', () => {
     });
 
     test('should hide on modal body click', async () => {
-        const view = render(withIntl(
+        const view = renderWithContext(
             <SubMenuModal {...baseProps}/>,
-        ));
+        );
 
         screen.getByText('Text A');
         screen.getByText('Text B');
@@ -78,7 +77,7 @@ describe('components/submenu_modal', () => {
             ...baseProps,
         };
 
-        render(
+        renderWithContext(
             <SubMenuModal {...props}/>,
         );
 
diff --git a/webapp/channels/src/utils/i18n.test.tsx b/webapp/channels/src/utils/i18n.test.tsx
new file mode 100644
index 0000000000..c9290ac10e
--- /dev/null
+++ b/webapp/channels/src/utils/i18n.test.tsx
@@ -0,0 +1,29 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import * as i18nSelectors from 'selectors/i18n';
+
+import {getIntl} from './i18n';
+
+describe('i18n', () => {
+    jest.spyOn(i18nSelectors, 'getTranslations').mockReturnValue({
+        test_key: 'expected value',
+    });
+    jest.spyOn(i18nSelectors, 'getCurrentLocale').mockReturnValue('en');
+
+    it('getIntl.formatMessage should resolve translated string', () => {
+        const intl = getIntl();
+        const fm = intl.formatMessage; // avoid triggering mmjstool
+
+        const actual = fm({id: 'test_key', defaultMessage: 'not found'});
+        expect(actual).toBe('expected value');
+    });
+
+    it('getIntl.formatMessage should resolve unknown string to default message', () => {
+        const intl = getIntl();
+        const fm = intl.formatMessage; // avoid triggering mmjstool
+
+        const actual = fm({id: 'unknown_key', defaultMessage: 'not found'});
+        expect(actual).toBe('not found');
+    });
+});
diff --git a/webapp/channels/src/utils/i18n.tsx b/webapp/channels/src/utils/i18n.tsx
index f8f909e2e5..abe731aa54 100644
--- a/webapp/channels/src/utils/i18n.tsx
+++ b/webapp/channels/src/utils/i18n.tsx
@@ -2,7 +2,25 @@
 // See LICENSE.txt for license information.
 
 import React from 'react';
-import {FormattedMessage, type IntlShape, type MessageDescriptor} from 'react-intl';
+import {FormattedMessage, createIntl, createIntlCache, type IntlShape, type MessageDescriptor} from 'react-intl';
+
+import {getCurrentLocale, getTranslations} from 'selectors/i18n';
+import store from 'stores/redux_store';
+
+const cache = createIntlCache();
+
+// getIntl returns an instance of IntlShape for the current locale.
+// Prefer `useIntl` and `FormattedMessage` and only use this selectively when
+// outside of React components.
+export function getIntl(): IntlShape {
+    const state = store.getState();
+    const locale = getCurrentLocale(state);
+
+    return createIntl({
+        locale,
+        messages: getTranslations(state, locale),
+    }, cache);
+}
 
 export function isMessageDescriptor(descriptor: unknown): descriptor is MessageDescriptor {
     return Boolean(descriptor && (descriptor as MessageDescriptor).id);