[snap] Holding down Ctrl+S generates too many 'save page' dialogs

[Liam Coogan]

Opening any page and holding Ctrl+S on the firefox snap package begins to spam-generate save dialogues. These do not stop being generated for several seconds after Ctrl+S is released. These dialogues slow down the system to the point that interacting with both them, and the system as a whole, feels laggy. The compositor also attempts to assign them each shadows, and as a result, on Mutter with Wayland, a they are surrounded by a thick black halo (see attachment).

I'm running Ubuntu 22.04.1 on Gnome 42.5 with Wayland. Firefox is version 107.0.1 although this bug has been present on every version of Firefox I've used on this system.

[Liam Coogan (lcoogan)]

This bug still occurs in the latest Firefox (108.0.1).

[Paul White (paulw2u)]

I can confirm this issue when running the snap version of Firefox in both the jammy and kinetic releases of Ubuntu. I don't see this bug when running the .deb version of Firefox in Ubuntu 20.04.