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Firefox outperforms Chrome in speed for the first time according to a Speedometer assessment
(alternativeto.net)
This is a most excellent place for technology news and articles.
Just use "Simple Tab Groups" extension. It's pretty good. And on top of that you can use other extensions, so that for example all tabs within a group automatically get added to a container (isolating them from other tabs). Really useful when shopping for stuff so advertisers can't track you around different shopping sites (or at least it makes it more difficult)