henry pushed to branch mullvad-browser-140.3.0esr-15.0-1 at The Tor Project / Applications / Mullvad Browser

Commits:

• d334771e
  by henry at 2025-09-22T11:25:45+01:00

  fixup! BB 42037: Disable about:firefoxview page
  
  TB 43900: Open a new tab rather than about:firefoxview when unloading
  the last tab.
  
  
  (cherry picked from commit f7e0a6109a96f327710680c7ebba4699fb303806)
  
  Co-authored-by: Henry Wilkes <henry@torproject.org>

1 changed file:

• browser/components/tabbrowser/content/tabbrowser.js

Changes:

           this.selectedTab = newTab;

         } else {

           allTabsUnloaded = true;

-          // all tabs are unloaded - show Firefox View if it's present, otherwise open a new tab

-          if (FirefoxViewHandler.tab || FirefoxViewHandler.button) {

-            FirefoxViewHandler.openTab("opentabs");

-          } else {

-            this.selectedTab = this.addTrustedTab(BROWSER_NEW_TAB_URL, {

-              skipAnimation: true,

-            });

-          }

+          // We disable the firefoxview path in base browser. tor-browser#43900.

+          // Might be resolved by bugzilla bug 1989429.

+          this.selectedTab = this.addTrustedTab(BROWSER_NEW_TAB_URL, {

+            skipAnimation: true,

+          });

         }

       }

       let memoryUsageBeforeUnload = await getTotalMemoryUsage();