I've disabled "tabs on top" in Firefox 4, but it seems that double-clicking an empty area in the tab bar still behaves as if it was the title bar, so the effect is toggling window maximization.
I grew used to the Firefox 3.x behavior, which is to open a new tab when double-clicking an empty area in the tab bar; however, I could not find any way to restore that option in the Firefox options or even in about:config
. Is it at all possible, and if it is, how?
EDIT turns out it's a known bug with Firefox 4 on windows.
Best Answer
This option is available with the Tab Mix Plus extension.
In the Tab Mix Plus options:
EDIT: Now there's an option in the mentioned dialog box, "Prevent double click on Tab-bar from changing window size." Setting that option, as well as the ones suggested above, fixes the problem.
UPDATE: Thanks for the tip - the updated dialog box is now included.