Tab groups like in the reply below, but also a number of other things such as a fully functional revival of DownThemAll (the webextension version still isn’t as powerful), and a number of other useful addons from here.
Plus, I like to write my own complete themes, and it’s far more convenient to package them into installable XPI files than it is to just use userChrome.css, since they can be easily distributed and updated automatically.
That’s very recent, I didn’t know.
I wouldn’t use a browser bought by a shady company when there are good alternatives. I wouldn’t want to support that company by using it.
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What do you need that for?
https://github.com/mk-pmb/TabGroupsManagerRevived/
https://www.ghacks.net/2014/03/21/tabgroups-manager-displays-firefox-tab-groups-frontend/
The best tab group manager that I have ever encountered.
Tab groups like in the reply below, but also a number of other things such as a fully functional revival of DownThemAll (the webextension version still isn’t as powerful), and a number of other useful addons from here.
Plus, I like to write my own complete themes, and it’s far more convenient to package them into installable XPI files than it is to just use userChrome.css, since they can be easily distributed and updated automatically.