My Thunderbird just got updated to v. 115, I'm on Ubuntu 20.04 with KDE/Plasma 5.18. I have two questions, one of which is possibly a bug. 1. The new layout places a lot of buttons in the window title. How do I remove them? I'd like a standard window title like most of the other app (say, Okular) have. 2. My window manager works with focus-follows-mouse, and a window is raised whenever I click on the window borders or title. With Thunderbird 115 that doesn't work anymore: if the Thunderbird window is partly below some other window, and I click on its borders or title, it is *not* raised. How to fix this? Should I report a bug? Cheers!