There is a visual style issue with tabs on top on FF4b8 for MACOS :
Since the upgrade, the current selected tab is not visually different on the tab bar, so a bit of a hassle to locate it.
Weird, please fix it
I am also the same.
I am very in trouble , too.
Under such a condition, I am invalidating TMP because I do not indeed use Firefox easily
However, because it becomes difficult to use Firefox in another meaning, I am very in trouble
I have contributed to ' http://tmp.garyr.net/forum/viewtopic.php?t=13083
Though it made a mistake in the contribution place.
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:2.0b9pre) Gecko/20101223 Firefox/4.0b9pre - Build ID: 20101223030401