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Mozilla Firefox is Working on a Tab Grouping Feature
(news.itsfoss.com)
A place to discuss the news and latest developments on the open-source browser Firefox
This is what has been keeping me on chromium for my study partition. I would love to use Firefox, but I need to group tabs by class. Once Firefox implements this I'll be able to drop google products completely.
I'm using FF tab groups and Sideberry, other than the occasional link getting opened in the wrong group I haven't had issues. I really need to test Chrome and it's profiles to see what the fuss is all about :D