The current best option is Firefox Beta with about:config

Other options are iceraven which is normally several updates behind and the Iodé browser, which is up to date but I don’t know much about it to blindfully use it to replace Mull, this is the Fdroid repo link

Hopefully some options show up before the next Firefox update.

Agree, I hate everything is on discord now.

There’s someone looking for collaboration to fork Mull https://redlib.pussthecat.org/r/fossdroid/comments/1hlg8zx/seeking_collaborators_for_mull_browser_fork/