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10 Reasons You Should Switch From Chrome to Firefox.
(www.howtogeek.com)
This is a most excellent place for technology news and articles.
I don’t like that Vivaldi can’t have multiple levels of grouping like you can in sideberry or tree style tabs
I guess that's the one feature Sideberry has over Vivaldi, but I've never missed it if I'm being honest. To each their own.