You asked, we built it: Firefox tab groups are here  | The Mozilla Blog
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What happens when 4,500 people ask for the same feature? At Firefox, we build it. Tab groups have long been the most requested idea on Mozilla Connect –
  • pory@lemmy.worldEnglish
    2·
    2 days ago

    Waterfox does this with an improved implementation of tree style tabs. Also zero Mozilla Corp telemetry, opt-in or otherwise.