diff --git a/desktop/main.cjs b/desktop/main.cjs
index b9475cfd8..aad5fd564 100644
--- a/desktop/main.cjs
+++ b/desktop/main.cjs
@@ -1,202 +1,234 @@
-const { app, BrowserWindow, shell, Menu, ipcMain } = require('electron');
+const {
+  app,
+  BrowserWindow,
+  shell,
+  Menu,
+  ipcMain,
+  systemPreferences,
+} = require('electron');
 const fs = require('fs');
 const path = require('path');
 
 const isDev = process.env.ENV === 'dev';
 const url = isDev ? 'http://localhost/comm/' : 'https://web.comm.app';
 const isMac = process.platform === 'darwin';
 
 const scrollbarCSS = fs.promises.readFile(
   path.join(__dirname, 'scrollbar.css'),
   'utf8',
 );
 
 const setApplicationMenu = () => {
   let mainMenu = [];
   if (isMac) {
     mainMenu = [
       {
         label: app.name,
         submenu: [
           { role: 'about' },
           { type: 'separator' },
           { role: 'services' },
           { type: 'separator' },
           { role: 'hide' },
           { role: 'hideOthers' },
           { role: 'unhide' },
           { type: 'separator' },
           { role: 'quit' },
         ],
       },
     ];
   }
   const viewMenu = {
     label: 'View',
     submenu: [
       { role: 'reload' },
       { type: 'separator' },
       { role: 'resetZoom' },
       { role: 'zoomIn' },
       { role: 'zoomOut' },
       { type: 'separator' },
       { role: 'togglefullscreen' },
       { role: 'toggleDevTools' },
     ],
   };
   const windowMenu = {
     label: 'Window',
     submenu: [
       { role: 'minimize' },
       ...(isMac
         ? [
             { type: 'separator' },
             { role: 'front' },
             { type: 'separator' },
             { role: 'window' },
           ]
         : [{ role: 'close' }]),
     ],
   };
 
   const menu = Menu.buildFromTemplate([
     ...mainMenu,
     { role: 'fileMenu' },
     { role: 'editMenu' },
     viewMenu,
     windowMenu,
   ]);
   Menu.setApplicationMenu(menu);
 };
 
 const createMainWindow = () => {
   const win = new BrowserWindow({
     show: false,
     width: 1300,
     height: 800,
     minWidth: 1100,
     minHeight: 600,
     titleBarStyle: 'hidden',
     trafficLightPosition: { x: 20, y: 24 },
     backgroundColor: '#0A0A0A',
     webPreferences: {
       preload: path.join(__dirname, 'preload.cjs'),
     },
   });
 
   const updateNavigationState = () => {
     win.webContents.send('on-navigate', {
       canGoBack: win.webContents.canGoBack(),
       canGoForward: win.webContents.canGoForward(),
     });
   };
   win.webContents.on('did-navigate-in-page', updateNavigationState);
   ipcMain.on('clear-history', () => {
     win.webContents.clearHistory();
     updateNavigationState();
   });
 
+  ipcMain.on('double-click-top-bar', () => {
+    if (isMac) {
+      // Possible values for AppleActionOnDoubleClick are Maximize,
+      // Minimize or None. We handle the last two inside this if.
+      // Maximize (which is the only behaviour for other platforms)
+      // is handled in the later block.
+      const action = systemPreferences.getUserDefault(
+        'AppleActionOnDoubleClick',
+        'string',
+      );
+      if (action === 'None') {
+        return;
+      } else if (action === 'Minimize') {
+        win.minimize();
+        return;
+      }
+    }
+
+    if (win.isMaximized()) {
+      win.unmaximize();
+    } else {
+      win.maximize();
+    }
+  });
+
   win.webContents.setWindowOpenHandler(({ url: openURL }) => {
     shell.openExternal(openURL);
     // Returning 'deny' prevents a new electron window from being created
     return { action: 'deny' };
   });
 
   (async () => {
     const css = await scrollbarCSS;
     win.webContents.insertCSS(css);
   })();
 
   win.loadURL(url);
 
   return win;
 };
 
 const createSplashWindow = () => {
   const win = new BrowserWindow({
     width: 300,
     height: 300,
     resizable: false,
     frame: false,
     alwaysOnTop: true,
     center: true,
     backgroundColor: '#111827',
   });
   win.loadFile(path.join(__dirname, 'pages', 'splash.html'));
 
   return win;
 };
 
 const createErrorWindow = () => {
   const win = new BrowserWindow({
     show: false,
     width: 400,
     height: 300,
     resizable: false,
     center: true,
     titleBarStyle: 'hidden',
     trafficLightPosition: { x: 20, y: 24 },
     backgroundColor: '#111827',
   });
   win.on('close', () => {
     app.quit();
   });
   win.loadFile(path.join(__dirname, 'pages', 'error.html'));
 
   return win;
 };
 
 const show = () => {
   const splash = createSplashWindow();
   const error = createErrorWindow();
   const main = createMainWindow();
 
   let loadedSuccessfully = true;
   main.webContents.on('did-fail-load', () => {
     loadedSuccessfully = false;
     if (!splash.isDestroyed()) {
       splash.destroy();
     }
     if (!error.isDestroyed()) {
       error.show();
     }
 
     setTimeout(() => {
       loadedSuccessfully = true;
       main.loadURL(url);
     }, 1000);
   });
 
   main.webContents.on('did-finish-load', () => {
     if (loadedSuccessfully) {
       if (!splash.isDestroyed()) {
         splash.destroy();
       }
       if (!error.isDestroyed()) {
         error.destroy();
       }
 
       main.show();
     }
   });
 };
 
 app.setName('Comm');
 setApplicationMenu();
 
 (async () => {
   await app.whenReady();
   show();
 
   app.on('activate', () => {
     if (BrowserWindow.getAllWindows().length === 0) {
       show();
     }
   });
 })();
 
 app.on('window-all-closed', () => {
   if (!isMac) {
     app.quit();
   }
 });
diff --git a/desktop/preload.cjs b/desktop/preload.cjs
index 804f49a5d..d5052680b 100644
--- a/desktop/preload.cjs
+++ b/desktop/preload.cjs
@@ -1,12 +1,13 @@
 const { contextBridge, ipcRenderer } = require('electron');
 
 const bridge = {
   onNavigate: callback => {
     const withEvent = (event, ...args) => callback(...args);
     ipcRenderer.on('on-navigate', withEvent);
     return () => ipcRenderer.removeListener('on-navigate', withEvent);
   },
   clearHistory: () => ipcRenderer.send('clear-history'),
+  doubleClickTopBar: () => ipcRenderer.send('double-click-top-bar'),
 };
 
 contextBridge.exposeInMainWorld('electronContextBridge', bridge);
diff --git a/web/app.react.js b/web/app.react.js
index 2529ffc28..aad89dd88 100644
--- a/web/app.react.js
+++ b/web/app.react.js
@@ -1,293 +1,297 @@
 // @flow
 
 import 'basscss/css/basscss.min.css';
 import './theme.css';
 import { config as faConfig } from '@fortawesome/fontawesome-svg-core';
 import _isEqual from 'lodash/fp/isEqual';
 import * as React from 'react';
 import { DndProvider } from 'react-dnd';
 import { HTML5Backend } from 'react-dnd-html5-backend';
 import { useDispatch } from 'react-redux';
 
 import {
   fetchEntriesActionTypes,
   updateCalendarQueryActionTypes,
 } from 'lib/actions/entry-actions';
 import {
   ModalProvider,
   useModalContext,
 } from 'lib/components/modal-provider.react';
 import {
   createLoadingStatusSelector,
   combineLoadingStatuses,
 } from 'lib/selectors/loading-selectors';
 import { unreadCount } from 'lib/selectors/thread-selectors';
 import { isLoggedIn } from 'lib/selectors/user-selectors';
 import type { LoadingStatus } from 'lib/types/loading-types';
 import type { Dispatch } from 'lib/types/redux-types';
 import { registerConfig } from 'lib/utils/config';
 
 import AppsDirectory from './apps/apps-directory.react';
 import Calendar from './calendar/calendar.react';
 import Chat from './chat/chat.react';
 import { TooltipProvider } from './chat/tooltip-provider';
 import NavigationArrows from './components/navigation-arrows.react';
 import electron from './electron';
 import InputStateContainer from './input/input-state-container.react';
 import LoadingIndicator from './loading-indicator.react';
 import { MenuProvider } from './menu-provider.react';
 import { updateNavInfoActionType } from './redux/action-types';
 import DeviceIDUpdater from './redux/device-id-updater';
 import DisconnectedBar from './redux/disconnected-bar';
 import DisconnectedBarVisibilityHandler from './redux/disconnected-bar-visibility-handler';
 import FocusHandler from './redux/focus-handler.react';
 import { useSelector } from './redux/redux-utils';
 import VisibilityHandler from './redux/visibility-handler.react';
 import history from './router-history';
 import AccountSettings from './settings/account-settings.react';
 import DangerZone from './settings/danger-zone.react';
 import LeftLayoutAside from './sidebar/left-layout-aside.react';
 import Splash from './splash/splash.react';
 import './typography.css';
 import css from './style.css';
 import getTitle from './title/getTitle';
 import { type NavInfo } from './types/nav-types';
 import { canonicalURLFromReduxState, navInfoFromURL } from './url-utils';
 
 // We want Webpack's css-loader and style-loader to handle the Fontawesome CSS,
 // so we disable the autoAddCss logic and import the CSS file. Otherwise every
 // icon flashes huge for a second before the CSS is loaded.
 import '@fortawesome/fontawesome-svg-core/styles.css';
 faConfig.autoAddCss = false;
 
 registerConfig({
   // We can't securely cache credentials on web, so we have no way to recover
   // from a cookie invalidation
   resolveInvalidatedCookie: null,
   // We use httponly cookies on web to protect against XSS attacks, so we have
   // no access to the cookies from JavaScript
   setCookieOnRequest: false,
   setSessionIDOnRequest: true,
   // Never reset the calendar range
   calendarRangeInactivityLimit: null,
   platformDetails: { platform: 'web' },
 });
 
 type BaseProps = {
   +location: {
     +pathname: string,
     ...
   },
 };
 type Props = {
   ...BaseProps,
   // Redux state
   +navInfo: NavInfo,
   +entriesLoadingStatus: LoadingStatus,
   +loggedIn: boolean,
   +activeThreadCurrentlyUnread: boolean,
   // Redux dispatch functions
   +dispatch: Dispatch,
   +modals: $ReadOnlyArray<React.Node>,
 };
 class App extends React.PureComponent<Props> {
   componentDidMount() {
     const {
       navInfo,
       location: { pathname },
       loggedIn,
     } = this.props;
     const newURL = canonicalURLFromReduxState(navInfo, pathname, loggedIn);
     if (pathname !== newURL) {
       history.replace(newURL);
     }
   }
 
   componentDidUpdate(prevProps: Props) {
     const {
       navInfo,
       location: { pathname },
       loggedIn,
     } = this.props;
     if (!_isEqual(navInfo)(prevProps.navInfo)) {
       const newURL = canonicalURLFromReduxState(navInfo, pathname, loggedIn);
       if (newURL !== pathname) {
         history.push(newURL);
       }
     } else if (pathname !== prevProps.location.pathname) {
       const newNavInfo = navInfoFromURL(pathname, { navInfo });
       if (!_isEqual(newNavInfo)(navInfo)) {
         this.props.dispatch({
           type: updateNavInfoActionType,
           payload: newNavInfo,
         });
       }
     } else if (loggedIn !== prevProps.loggedIn) {
       const newURL = canonicalURLFromReduxState(navInfo, pathname, loggedIn);
       if (newURL !== pathname) {
         history.replace(newURL);
       }
     }
     if (loggedIn !== prevProps.loggedIn) {
       electron?.clearHistory();
     }
   }
 
   onWordmarkClicked = () => {
     this.props.dispatch({
       type: updateNavInfoActionType,
       payload: { tab: 'chat' },
     });
   };
 
   render() {
     let content;
     if (this.props.loggedIn) {
       content = this.renderMainContent();
     } else {
       content = <Splash />;
     }
     return (
       <DndProvider backend={HTML5Backend}>
         <TooltipProvider>
           <MenuProvider>
             <FocusHandler />
             <VisibilityHandler />
             <DeviceIDUpdater />
             {content}
             {this.props.modals}
           </MenuProvider>
         </TooltipProvider>
       </DndProvider>
     );
   }
 
+  onHeaderDoubleClick = () => electron?.doubleClickTopBar();
+  stopDoubleClickPropagation = electron ? e => e.stopPropagation() : null;
+
   renderMainContent() {
     let mainContent;
     const { tab, settingsSection } = this.props.navInfo;
     if (tab === 'calendar') {
       mainContent = <Calendar url={this.props.location.pathname} />;
     } else if (tab === 'chat') {
       mainContent = <Chat />;
     } else if (tab === 'apps') {
       mainContent = <AppsDirectory />;
     } else if (tab === 'settings') {
       if (settingsSection === 'account') {
         mainContent = <AccountSettings />;
       } else if (settingsSection === 'danger-zone') {
         mainContent = <DangerZone />;
       }
     }
 
     let navigationArrows = null;
     if (electron) {
       navigationArrows = <NavigationArrows />;
     }
 
     return (
       <div className={css.layout}>
         <DisconnectedBarVisibilityHandler />
         <DisconnectedBar />
-        <header className={css['header']}>
+        <header className={css.header} onDoubleClick={this.onHeaderDoubleClick}>
           <div className={css['main-header']}>
             <h1 className={css.wordmark}>
               <a
                 title="Comm Home"
                 aria-label="Go to Comm Home"
                 onClick={this.onWordmarkClicked}
+                onDoubleClick={this.stopDoubleClickPropagation}
               >
                 Comm
               </a>
             </h1>
             {navigationArrows}
             <div className={css['upper-right']}>
               <LoadingIndicator
                 status={this.props.entriesLoadingStatus}
                 size="medium"
                 loadingClassName={css['page-loading']}
                 errorClassName={css['page-error']}
               />
             </div>
           </div>
         </header>
         <InputStateContainer>
           <div className={css['main-content-container']}>
             <div className={css['main-content']}>{mainContent}</div>
           </div>
         </InputStateContainer>
         <LeftLayoutAside />
       </div>
     );
   }
 }
 
 const fetchEntriesLoadingStatusSelector = createLoadingStatusSelector(
   fetchEntriesActionTypes,
 );
 const updateCalendarQueryLoadingStatusSelector = createLoadingStatusSelector(
   updateCalendarQueryActionTypes,
 );
 
 const ConnectedApp: React.ComponentType<BaseProps> = React.memo<BaseProps>(
   function ConnectedApp(props) {
     const activeChatThreadID = useSelector(
       state => state.navInfo.activeChatThreadID,
     );
     const navInfo = useSelector(state => state.navInfo);
 
     const fetchEntriesLoadingStatus = useSelector(
       fetchEntriesLoadingStatusSelector,
     );
     const updateCalendarQueryLoadingStatus = useSelector(
       updateCalendarQueryLoadingStatusSelector,
     );
     const entriesLoadingStatus = combineLoadingStatuses(
       fetchEntriesLoadingStatus,
       updateCalendarQueryLoadingStatus,
     );
 
     const loggedIn = useSelector(isLoggedIn);
     const activeThreadCurrentlyUnread = useSelector(
       state =>
         !activeChatThreadID ||
         !!state.threadStore.threadInfos[activeChatThreadID]?.currentUser.unread,
     );
 
     const boundUnreadCount = useSelector(unreadCount);
     React.useEffect(() => {
       document.title = getTitle(boundUnreadCount);
     }, [boundUnreadCount]);
 
     const dispatch = useDispatch();
     const modalContext = useModalContext();
     const modals = React.useMemo(
       () =>
         modalContext.modals.map(([modal, key]) => (
           <React.Fragment key={key}>{modal}</React.Fragment>
         )),
       [modalContext.modals],
     );
 
     return (
       <App
         {...props}
         navInfo={navInfo}
         entriesLoadingStatus={entriesLoadingStatus}
         loggedIn={loggedIn}
         activeThreadCurrentlyUnread={activeThreadCurrentlyUnread}
         dispatch={dispatch}
         modals={modals}
       />
     );
   },
 );
 
 function AppWithProvider(props: BaseProps): React.Node {
   return (
     <ModalProvider>
       <ConnectedApp {...props} />
     </ModalProvider>
   );
 }
 
 export default AppWithProvider;
diff --git a/web/components/navigation-arrows.react.js b/web/components/navigation-arrows.react.js
index 35bcbcee4..7f620e8d2 100644
--- a/web/components/navigation-arrows.react.js
+++ b/web/components/navigation-arrows.react.js
@@ -1,50 +1,60 @@
 // @flow
 
 import classnames from 'classnames';
 import * as React from 'react';
 
 import electron from '../electron.js';
 import history from '../router-history.js';
 import SWMansionIcon from '../SWMansionIcon.react.js';
 import css from './navigation-arrows.css';
 
+const stopDoubleClickPropagation = e => e.stopPropagation();
+
 function NavigationArrows(): React.Node {
   const goBack = React.useCallback(
     () => history.getHistoryObject().goBack(),
     [],
   );
   const goForward = React.useCallback(
     () => history.getHistoryObject().goForward(),
     [],
   );
 
   const [disableBack, setDisableBack] = React.useState(false);
   const [disableFoward, setDisableForward] = React.useState(false);
 
   React.useEffect(
     () =>
       electron?.onNavigate(({ canGoBack, canGoForward }) => {
         setDisableBack(!canGoBack);
         setDisableForward(!canGoForward);
       }),
     [],
   );
 
   const goBackClasses = classnames(css.button, { [css.disabled]: disableBack });
   const goForwardClasses = classnames(css.button, {
     [css.disabled]: disableFoward,
   });
 
   return (
     <div className={css.container}>
-      <a className={goBackClasses} onClick={goBack}>
+      <a
+        className={goBackClasses}
+        onClick={goBack}
+        onDoubleClick={stopDoubleClickPropagation}
+      >
         <SWMansionIcon icon="arrow-left" size={24} />
       </a>
-      <a className={goForwardClasses} onClick={goForward}>
+      <a
+        className={goForwardClasses}
+        onClick={goForward}
+        onDoubleClick={stopDoubleClickPropagation}
+      >
         <SWMansionIcon icon="arrow-right" size={24} />
       </a>
     </div>
   );
 }
 
 export default NavigationArrows;
diff --git a/web/electron.js b/web/electron.js
index b8789dc26..ff45ba625 100644
--- a/web/electron.js
+++ b/web/electron.js
@@ -1,16 +1,17 @@
 // @flow
 
 declare var electronContextBridge;
 
 type OnNavigateListener = ({
   +canGoBack: boolean,
   +canGoForward: boolean,
 }) => void;
 
 const electron: null | {
   // Returns a callback that you can call to remove the listener
   +onNavigate: OnNavigateListener => () => void,
   +clearHistory: () => void,
+  +doubleClickTopBar: () => void,
 } = typeof electronContextBridge === 'undefined' ? null : electronContextBridge;
 
 export default electron;