I use a combination of Tree Style Tab + Personal titlebar + Stratiform. When I customize the browser to look the way I want, there's only 2 annoying things I can't get rid of. First is this line, which is separating toolbars from content and tabs. It can be seen here http://s14.postimage.org/a9ysnwoup/PIC1.jpg or even better here http://s14.postimage.org/rd6mgjbv5/PIC4.jpg However that line does not appear or is thin on extensions page http://s14.postimage.org/vjrgvvbgx/PIC2.jpg http://s14.postimage.org/xcudk6wnl/PIC3.jpg I am sure that line can be removed via userchrome, because I edited a bunch of things in it and I did remove it, but cause I wasn't sure what I'm doing, I messed up pretty bad and it ruined lots of other things. So if anyone can help me find a parameter for that line I'll be thankful. And the second things is that tabs are starting few pixels lowers than that line, but I would like the top tab to be exactly where that line is.