theres nothing wrong wif yr firefox. its yr system language
input. right click on yr task bar then under 'Toolbars' make sure
the language bar is ticked. click on the small icon that either
display CH or EN. its just right beside all those system icons. to
change it just click on the language icon once and select the
language u want
u may haf accidentally pressed a shortcut sequence which switches
yr language input. just right click on the language icon and click
'Settings'. then click on 'Key Settings' to see wats the shortcut
sequence and change it if u want to
