To use these add-ons, you'll need to download Firefox.

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Iceggiren i Simple Tab Groups

Simple Tab Groups sɣur Drive4ik

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Icegger-it Prashant Sachdeva
sɣur Prashant Sachdeva, לפני 5 שנים
This has to be one of the most consistent extensions with Firefox. The interface is very transparent. Does not suffer from the issues I often had with TreeStyleTabs.