nostr:npub1437d992cqszvsnzpuy7jnec2w90dk4tfj57echyahg6ffu9y9t2s9kranm 

Poor tab management in firefox (both natively and when considering extension options).

Two major deal breakers for me.

1) Tabs do not resize as you open more. So once I hit about 20 tabs the rest scroll off the screen. As someone with ~100 tabs at any time this is completely unmanagable.

2) Lack of any native tab grouping (in a collapsible way) which may have addressed 1 to some degree, and is a needed feature on its own. Extensions do exist but none of them add the feature to the tab bar, all require convoluted UI elements that would be tedious and hacky/workaround at best.