I’ve seen some ideas here asking for X or Y to be added to the list of supported email apps that the Firefox mobile app can launch for mailto links. May I suggest an option for Firefox to use whatever default email app I specified in my device settings (similar to how Firefox uses light or dark mode depending on system settings) — and Firefox should default to follow the device setting, not the OS’s stock email app, unless the user has specified otherwise — instead of having to re-specify it in the browser? I don’t use my OS’s stock email app for basically anything, and it’s irritating for other apps to continue to insist on using it.