When I try to use facebook on firefox, works for minutes. I click in “more comments” and no response. Also when I try to post anything, I press Enter, and the message is nor posted.
I try in opera and works fine.
I try deleting the .mozzila file from my home directory. Then installing Firefox again, but without lucky.
it sounds like you have javascript disabled
it could be an addon or you might have disabled it in preferences
try firefox in safe mode (it disables addons)
hit the 3 horizontal buttons -> the question mark -> restart with add-ons disabled
I think you have the no script addon try adding fb on the white list
edit
I just saw
I try deleting the .mozzila file from my home directory. Then installing Firefox again, but without lucky.
maybe you have a library issue, tell us your repo list