&gt; Tab Groups<p>Still works, I use it on a daily basis. It&#x27;s just an addon now. It will probably continue to work for a few years, they&#x27;ve been wanting to get rid of it since 2013 (<a href="https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=836758" rel="nofollow">https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=836758</a>) and it&#x27;s still there.<p>But I&#x27;d be glad to hear of any alternatives!