After logging into Firefox today my UI layout has completely changed. The tabs are now taking up significant space on the side of my screen, with the new tab button and a search bar at the top. It's incredibly irritating trying to adjust after being in the habit of having my tabs at the top of the screen above the address bar and I'm really not a fan of how it takes up my screen space and distracts me. Is there any way to change it back? in the most recent patch notes there wasn't anything about this sort of change.