thanks so much! Rated 4 out of 5 stars
BUT. i wish it showed the minimize/maximize/close buttons that were on the title bar, now they're not there. i know beggars shouldn't be choosers :-).
this one works on linux unlike the other plugin "hide caption titlebar plus".
anyways, this has made me nuts since firefox started hiding it by default on windows years ago. why not linux too firefox?