diff --git a/src/browser/browserApi.ts b/src/browser/browserApi.ts
index 2683581852..6f4a0e293d 100644
--- a/src/browser/browserApi.ts
+++ b/src/browser/browserApi.ts
@@ -3,8 +3,8 @@ export class BrowserApi {
     static isSafariApi: boolean = (typeof safari !== 'undefined') &&
         navigator.userAgent.indexOf(' Safari/') !== -1 && navigator.userAgent.indexOf('Chrome') === -1;
     static isChromeApi: boolean = !BrowserApi.isSafariApi && (typeof chrome !== 'undefined');
-    static isFirefoxOnAndroid: boolean =
-        navigator.userAgent.indexOf('Firefox/') !== -1 && navigator.userAgent.indexOf('Android') !== -1;
+    static isFirefoxOnAndroid: boolean = navigator.userAgent.indexOf('Firefox/') !== -1 &&
+        navigator.userAgent.indexOf('Android') !== -1;
 
     static async getTabFromCurrentWindowId(): Promise<any> {
         if (BrowserApi.isChromeApi) {
@@ -210,8 +210,8 @@ export class BrowserApi {
             // COMPAT: Reactivating the active tab dismisses the popout-tab. The promise final
             // condition is only called if the popout wasn't already dismissed (future proofing).
             // BUGZILLA: https://bugzilla.mozilla.org/show_bug.cgi?id=1433604
-            browser.tabs.update({active: true}).finally(win.close);
-        } else if (browserApi.isWebExtensionsApi || BrowserApi.isChromeApi) {
+            browser.tabs.update({ active: true }).finally(win.close);
+        }  else if (browserApi.isWebExtensionsApi || BrowserApi.isChromeApi) {
             win.close();
         } else if (BrowserApi.isSafariApi && safari.extension.popovers && safari.extension.popovers.length > 0) {
             safari.extension.popovers[0].hide();
diff --git a/src/globals.d.ts b/src/globals.d.ts
index 61c847c5da..2868ff5ae7 100644
--- a/src/globals.d.ts
+++ b/src/globals.d.ts
@@ -2,4 +2,5 @@ declare function escape(s: string): string;
 declare function unescape(s: string): string;
 declare var opr: any;
 declare var chrome: any;
+declare var browser: any;
 declare var safari: any;