diff --git a/packages/app-desktop/checkForUpdates.ts b/packages/app-desktop/checkForUpdates.ts
index ffdf3c553..cfa18c215 100644
--- a/packages/app-desktop/checkForUpdates.ts
+++ b/packages/app-desktop/checkForUpdates.ts
@@ -201,11 +201,11 @@ export default async function checkForUpdates(inBackground: boolean, parentWindo
 				});
 
 				if (buttonIndex === 0) {
-					bridge().openExternal(release.downloadUrl ? release.downloadUrl : release.pageUrl);
+					void bridge().openExternal(release.downloadUrl ? release.downloadUrl : release.pageUrl);
 				} else if (buttonIndex === 1) {
 					await addSkippedVersion(release.version);
 				} else if (buttonIndex === 2) {
-					bridge().openExternal('https://joplinapp.org/changelog/');
+					void bridge().openExternal('https://joplinapp.org/changelog/');
 				}
 			}
 		}
diff --git a/packages/app-desktop/gui/ClipperConfigScreen.tsx b/packages/app-desktop/gui/ClipperConfigScreen.tsx
index cce949ec9..42d0e4c41 100644
--- a/packages/app-desktop/gui/ClipperConfigScreen.tsx
+++ b/packages/app-desktop/gui/ClipperConfigScreen.tsx
@@ -28,11 +28,11 @@ class ClipperConfigScreenComponent extends React.Component {
 	}
 
 	chromeButton_click() {
-		bridge().openExternal('https://chrome.google.com/webstore/detail/joplin-web-clipper/alofnhikmmkdbbbgpnglcpdollgjjfek');
+		void bridge().openExternal('https://chrome.google.com/webstore/detail/joplin-web-clipper/alofnhikmmkdbbbgpnglcpdollgjjfek');
 	}
 
 	firefoxButton_click() {
-		bridge().openExternal('https://addons.mozilla.org/en-US/firefox/addon/joplin-web-clipper/');
+		void bridge().openExternal('https://addons.mozilla.org/en-US/firefox/addon/joplin-web-clipper/');
 	}
 
 	copyToken_click() {
diff --git a/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginBox.tsx b/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginBox.tsx
index 537e49df3..3d4e117bb 100644
--- a/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginBox.tsx
+++ b/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginBox.tsx
@@ -155,11 +155,11 @@ export default function(props: Props) {
 	const onNameClick = useCallback(() => {
 		const manifest = item.manifest;
 		if (!manifest.homepage_url) return;
-		bridge().openExternal(manifest.homepage_url);
+		void bridge().openExternal(manifest.homepage_url);
 	}, [item]);
 
 	const onRecommendedClick = useCallback(() => {
-		bridge().openExternal('https://github.com/joplin/plugins/blob/master/readme/recommended.md#recommended-plugins');
+		void bridge().openExternal('https://github.com/joplin/plugins/blob/master/readme/recommended.md#recommended-plugins');
 	}, []);
 
 	// For plugins in dev mode things like enabling/disabling or
diff --git a/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginsStates.tsx b/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginsStates.tsx
index ac994151b..bfffb253b 100644
--- a/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginsStates.tsx
+++ b/packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginsStates.tsx
@@ -198,7 +198,7 @@ export default function(props: Props) {
 	}, [pluginSettings, props.onChange]);
 
 	const onBrowsePlugins = useCallback(() => {
-		bridge().openExternal('https://github.com/joplin/plugins/blob/master/README.md#plugins');
+		void bridge().openExternal('https://github.com/joplin/plugins/blob/master/README.md#plugins');
 	}, []);
 
 	const onPluginSettingsChange = useCallback((event: OnPluginSettingChangeEvent) => {
diff --git a/packages/app-desktop/gui/MainScreen/commands/openItem.ts b/packages/app-desktop/gui/MainScreen/commands/openItem.ts
index 61984f5d5..01cd56e22 100644
--- a/packages/app-desktop/gui/MainScreen/commands/openItem.ts
+++ b/packages/app-desktop/gui/MainScreen/commands/openItem.ts
@@ -27,9 +27,9 @@ export const runtime = (): CommandRuntime => {
 					// but doesn't on macOS, so we need to convert it to a path
 					// before passing it to openPath.
 					const decodedPath = fileUriToPath(urlDecode(link), shim.platformName());
-					require('electron').shell.openPath(decodedPath);
+					void require('electron').shell.openPath(decodedPath);
 				} else {
-					require('electron').shell.openExternal(link);
+					void require('electron').shell.openExternal(link);
 				}
 			} else {
 				bridge().showErrorMessageBox(_('Unsupported link or message: %s', link));
diff --git a/packages/app-desktop/gui/MainScreen/commands/showSpellCheckerMenu.ts b/packages/app-desktop/gui/MainScreen/commands/showSpellCheckerMenu.ts
index 2fb51c75c..491f37345 100644
--- a/packages/app-desktop/gui/MainScreen/commands/showSpellCheckerMenu.ts
+++ b/packages/app-desktop/gui/MainScreen/commands/showSpellCheckerMenu.ts
@@ -19,7 +19,7 @@ export const runtime = (): CommandRuntime => {
 			useSpellChecker = useSpellChecker === null ? context.state.settings['spellChecker.enabled'] : useSpellChecker;
 
 			const menuItems = SpellCheckerService.instance().spellCheckerConfigMenuItems(selectedLanguage, useSpellChecker);
-			const menu = Menu.buildFromTemplate(menuItems);
+			const menu = Menu.buildFromTemplate(menuItems as any);
 			menu.popup(bridge().window());
 		},
 
diff --git a/packages/app-desktop/gui/MenuBar.tsx b/packages/app-desktop/gui/MenuBar.tsx
index 9e16259a1..be4722416 100644
--- a/packages/app-desktop/gui/MenuBar.tsx
+++ b/packages/app-desktop/gui/MenuBar.tsx
@@ -697,13 +697,13 @@ function useMenu(props: Props) {
 					submenu: [{
 						label: _('Website and documentation'),
 						accelerator: keymapService.getAccelerator('help'),
-						click() { bridge().openExternal('https://joplinapp.org'); },
+						click() { void bridge().openExternal('https://joplinapp.org'); },
 					}, {
 						label: _('Joplin Forum'),
-						click() { bridge().openExternal('https://discourse.joplinapp.org'); },
+						click() { void bridge().openExternal('https://discourse.joplinapp.org'); },
 					}, {
 						label: _('Make a donation'),
-						click() { bridge().openExternal('https://joplinapp.org/donate/'); },
+						click() { void bridge().openExternal('https://joplinapp.org/donate/'); },
 					}, {
 						label: _('Check for updates...'),
 						visible: shim.isMac() ? false : true,
@@ -816,7 +816,7 @@ function useMenu(props: Props) {
 							menuItemDic.textCut,
 							menuItemDic.textPaste,
 							menuItemDic.textSelectAll,
-						],
+						] as any,
 					},
 				]));
 			} else {
diff --git a/packages/app-desktop/gui/SyncWizard/Dialog.tsx b/packages/app-desktop/gui/SyncWizard/Dialog.tsx
index c6cf7c721..ea67c2c00 100644
--- a/packages/app-desktop/gui/SyncWizard/Dialog.tsx
+++ b/packages/app-desktop/gui/SyncWizard/Dialog.tsx
@@ -224,7 +224,7 @@ export default function(props: Props) {
 	}, [joplinCloudEmail, joplinCloudPassword, props.dispatch]);
 
 	const onJoplinCloudCreateAccountClick = useCallback(() => {
-		bridge().openExternal('https://joplinapp.org/plans/');
+		void bridge().openExternal('https://joplinapp.org/plans/');
 	}, []);
 
 	function renderJoplinCloudLoginForm() {
diff --git a/packages/app-desktop/services/plugins/PluginRunner.ts b/packages/app-desktop/services/plugins/PluginRunner.ts
index 9fdd35953..6931648de 100644
--- a/packages/app-desktop/services/plugins/PluginRunner.ts
+++ b/packages/app-desktop/services/plugins/PluginRunner.ts
@@ -120,7 +120,7 @@ export default class PluginRunner extends BasePluginRunner {
 
 		bridge().electronApp().registerPluginWindow(plugin.id, pluginWindow);
 
-		pluginWindow.loadURL(`${require('url').format({
+		void pluginWindow.loadURL(`${require('url').format({
 			pathname: require('path').join(__dirname, 'plugin_index.html'),
 			protocol: 'file:',
 			slashes: true,
diff --git a/packages/lib/services/plugins/api/types.ts b/packages/lib/services/plugins/api/types.ts
index 9effa4ec1..c77759917 100644
--- a/packages/lib/services/plugins/api/types.ts
+++ b/packages/lib/services/plugins/api/types.ts
@@ -297,7 +297,7 @@ export interface MenuItem {
 	/**
 	 * Set to "separator" to create a divider line
 	 */
-	type?: string;
+	type?: ('normal' | 'separator' | 'submenu' | 'checkbox' | 'radio');
 
 	/**
 	 * Accelerator associated with the menu item