I'm currently in the process of taking over as maintainer for the emacs-keybindings addon for Firefox.
I've just published the first update in years, with changes including:
- tested on Windows and Linux now
- some functionality is now configurable: debug logging, custom new tab page, experimental features, modifier-less high level bindings
- all keybindings are listed in the options settings page
- M- keybindings are now also reachable via ESC
- M-< and M-> was added for scrolling to top/bottom
- introducing prefix key, currently only used for opening/closing of windows (C-u C-x C-f or C-u C-k)
- search is introduced as experimental feature - currently it just highlights all matches
- the extension now registers as browser action in preparation for additional features
Unfortunately a lot of things that used to work with the old XUL plugins few years back just don't work with the new APIs - and Firefox developers have been sitting on relevant bugs for 8 years or more without anything happening now - so this is probably close to the best we can have for now. In combination with setting editing keybindings either via Gnome settings or AHK it makes browsing almost bearable again.
from a quick check, i have C-p and C-S-B working, but C-n and C-s and (many i think) others not working. ff 114 on linux.
C-s requires the "Enable experimental features" setting to be checked as it's currently just a proof of concept.
C-g I'm not sure if it currently works - but I'll remap that to "stop loading the page" anyway as I think the current binding isn't that useful. I'll need to implement that as browser action shortcut, though.
Would be useful to get a complete list of keys not working. Also relevant is X or Wayland (and there native or XWayland)