You can also tell Firefox to ignore it completely:

    browser.quitShortcut.disabled

As well as to warn:

    browser.warnOnQuit
    browser.warnOnQuitShortcut

Well, apparently I once was aware of these because I have it set in my custom user.js. But I guess ctrl-q will always be lock screen for me, old habits die hard.

> browser.quitShortcut.disabled

The setting is there, it's editable, but Firefox seems to completely ignore it on Linux.

At least up to 145.0.1.

Hmm, maybe it’s still necessary to rebind ctrl-q in some cases.

This says gnome has ctrl-q to quit applications:

https://wiki.gnome.org/Design/OS/KeyboardShortcuts

I don’t know if the above is still the default, but I have this in my gnome setup scripts anyway:

    gsettings set org.gnome.settings-daemon.plugins.media-keys screensaver “[‘<Control>q’]”

(IIRC it’s a terminal command because trying to bind ctrl-q in Settings will quit the Settings window. And you can’t unbind ctrl-q completely, so you have to bind it to something else. You could maybe add it as a custom launcher that just runs /bin/true.)

I use 144.0.2 on Linux and it works entirely fine here.

and testing it now, it asks me by default, and I never changed that setting