Using Samsung A53 and Samsung A54, Firefox version 142.0.1 on Android. Both phones have the same symptoms. 1 Device is logged into a Mozilla account, the other is not. When clicking a link that is supposed to open an app (for example my payment provider), it works the first time during a session. When I try to open it again, nothing happens. I tried toggling the setting to always open or ask. This resets the mechanism and it works again for the first time. After that I have to toggle the setting again to make it work. Stopping the app and clearing cache will resolve the issue once. After that it stops working again. It used to work a few weeks again, so I suspect an update broke the mechanism.