[willemmali]

For now using Firefox ESR might be a good stopgap measure for you?

That way you can use an old version with the old add-on ecosystem for at least a year longer, and still get security updates.

I usually work on Debian Jessie which ships (a variant of) Firefox ESR, and it's very well-usable. I haven't noticed any differences between the latest Firefox on Windows and Firefox-ESR on Debian.

The latest LastPass, XMarks, VimFX, uBlock Origin and uMatrix run on it, though I haven't managed to get RES (Reddit Enhancement Suite) to work.

[dagenleg]

Yes, I an using it already since Vimperator is broken on the latest release of FF.

[vinc]

The situation with Vimperator is so sad, I can't use Firefox without it.

I don't like all those toolbars that clutter my screen estate, I prefer to browse the web full screen. There are a lot of projects using Webkit, and I also use elinks a lot, but I'd rather support Mozilla and Firefox by using the later when I need a graphical browser.