My language bar won't work properly in Firefox

Hey guys:
Language bars should look like this:

URL: http://i539.photobucket.com/albums/ff359/MrIndigo666/firefoxprob2.jpg

instead, on firefox I get this:

URL: http://i539.photobucket.com/albums/ff359/MrIndigo666/firefoxprob1.jpg

Do anyone know how I an fix it? I cannot type correctly in firefox with that kind of language bar
I tried settings, but can't find the problem.