I feel ya, benderino. Same here. Found a css sheet that puts the tabs back below, but the tabs look ugly. When I have time, I try to merge the old css sheet that has nice looking tabs with the new sheet that puts the tabs below. If I manage I'll post...
I use this userChrome.css, which works well for me to give me tabs below the URL bar on Firefox 113.https://github.com/COOLak/firefox-csshacks/blob/master/chrome/tabs_on_bottom.cssMake sure you have the file in the right place. Also, in FF's about:co...
I'm also fed up with Firefox, and I have been wondering for some time whether Mozilla intentionally makes changes so that custom CSS no longer work. I haven't switched to other browsers because I do not want them.