You asked, we built it: Firefox tab groups are here  | The Mozilla Blog
blog.mozilla.org
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 –
  • davel@lemmy.mlEnglish
    0·
    5 days ago

    I had to enable them: about:config -> browser.tabs.groups.enabled -> true