Since FF35, using linux with e26wm, the title bar is gone. Screen seems to be stuck in full setting - F11 just shows/hides top right min/max/exit toggles. Min/max doesn't work. Going to customize toolbars, title bar option is there and checked but the option itself looks like it is grayed out (lighter color). Screen cannot be resized. I am used to a menu accessed via rt. click on the title bar but that is gone (I do have access to that menu with combo alt/rt-clk anywhere on screen - see below). That menu had a shade option (window shade like) which I used extensively but thats gone. If I click alt-rt click anywhere on the screen, I can get my missing control menu back without the shade option but with a borderless option checked which cannot be changed. I am fully aware that linux + E26 is kinda out there but have been all over my settings (includes border settings which firefox ignores). I can't find any permission settings on config/js/pref files which may be a cause. Thing is, mozilla thunderbird's screens work and title bar is in place with desired menu, etc. as do all other apps except ms edge, which leads me to feel it is a firefox setting somewhere and I believe it is the side thingy that everyone seems to love in chromium/chrome might be the cause - the tabs on top option which I don't have an interest in. Sorry for the length here but I'm at my wits end and all a google search offers (here as well) is to go customize etc. etc. Any thoughts would be greatly appreciated - been using FF on linux since day 1 without any problems I couldn't figure out till now.