try in xterminal ls -a
u will see all the filedirectories in ur phone stored one of them is .mozilla.
whenever i had a problem with internet loading pages etc. i remove that directorie by typing rm -r .mozilla after a reboot the browser will be faster as never before beleive me!
Only thing is that u have to reinstall adblockplus if u where using it!(dont use the one in extra but powersearch for version1.1.1)
i hope this solves ur problems