Sometimes when I start Firefox a new tab is opened from addons, or also whenever I update Firefox to a major version (eg: https://www.mozilla.org/firefox/112.0/whatsnew/?oldversion=111.0.1) ; I suppose it's hard to block them, but at least can you implement a way to launch them in a new window instead of a new tab, because if I'm using many tabs it will interrupt my workflow (don't remember where I was), while I don't see any cons in doing it. By the way "Open links in tabs instead of new windows" unfortunately is not for me.