Personally I don't care - it could be first-party extension. But you could bring up the same argument about vertical tabs, tab groups, Firefox Sync or many oth

Personally I don't care - it could be first-party extension. But you could bring up the same argument about vertical tabs, tab groups, Firefox Sync or many other things that interfere with the browser on much deeper level than shortcut to open page in the sidebar. Is there argument to single out this specific feature apart from "AI bad"?