Fixed

• Fixed Firefox freezing when switching between apps or opening certain panels within the browser. (Bug 1969253 & Bug 1969346)

• Fixed difficult selection of drop-down menu options in the Firefox preferences page when selected via the in-page search. (Bug 1968949)

• Fixed various selection issues when triple-clicking text in some situations. (Bug 1969100 & Bug 1969432)

• Fixed an incorrect filename being used when setting an image as the desktop wallpaper on Windows. (Bug 1969793)

• Various security fixes.

• Reference link to 139.0.1 release notes.