Multiple UI Improvements

web/react/components/settings_sidebar.jsx

@@ -1,6 +1,8 @@
 // Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
+import * as Utils from '../utils/utils.jsx';
+
 export default class SettingsSidebar extends React.Component {
     componentDidUpdate() {
         $('.settings-modal').find('.modal-body').scrollTop(0);
@@ -16,6 +18,11 @@ export default class SettingsSidebar extends React.Component {
         this.props.updateTab(tab.name);
         $(e.target).closest('.settings-modal').addClass('display--content');
     }
+    componentDidMount() {
+        if (Utils.isBrowserFirefox()) {
+            $('.settings-modal .settings-table .nav').addClass('position--top');
+        }
+    }
     render() {
         let tabList = this.props.tabs.map(function makeTab(tab) {
             let key = `${tab.name}_li`;