* Firefox now recognizes the theme selection (Dark, Light, Follow Device) setting on Custom Tabs.
* Removed the “Open in App” button when Firefox is set as the default PDF Viewer.
* 125.3.0: Fixed an issue that could cause incorrect font selection in some situations for users with the Japanese locale set.
* 125.3.0: Fixed video disappearing when trying to go fullscreen from a picture-in-picture window.