Bug 1996443 - Focus the browser window when opening about:logins via LoginHelper.openPasswordManager. r?mtigley

Differential Revision: https://phabricator.services.mozilla.com/D332854

toolkit/components/passwordmgr/LoginHelper.sys.mjs

@@ -1231,7 +1231,8 @@ export const LoginHelper = {
   },
 
   /**
-   * Open the password manager window.
+   * Open the password manager in a new tab and bring the browser window
+   * containing it to the foreground.
    *
    * @param {Window} window
    *                 the window from where we want to open the dialog
@@ -1272,6 +1273,10 @@ export const LoginHelper = {
     });
 
     tab.setAttribute("preselect-login", preselectedLogin);
+
+    // The caller may live in a different window (e.g. Page Info), so bring
+    // the browser window showing about:logins to the foreground.
+    browser.documentGlobal.focus();
   },
 
   /**