The extension "Open With" is working with Waterfox again
The extension "Open With" wasn't working with Waterfox 6.5.10 but I managed to make it work with this version (and hopefully with all future versions). I've uploaded the fix + a short but detailed enough description on github.
https://github.com/rado84-github/openwith-waterfox-linux/Open linkView original on lemmy.ml