I was hoping for screenshot sharing, lol. Yours look similar familiar, I wouldn’t be surprised if we shared in the past whenever we had this topic before.

Mine evolves from time to time. Sometimes I learn something new from new screenshots and incorporate that. One such recent “implementation” is the Bookmarks Toolbar. I created a top level directory named “Favorites” and put all quick access bookmarks in there and moved the toolbar to the same level of tabs, to save me an entire extra line of bar. My current Firefox looks like this:

I’m on KDE, the titlebar is disabled for all windows (I’m an auto tiler person). BTW I’m not sure how to get rid off the rounded corners of the window, but that is not Firefox specific.