Stumped!?!

[dexterrr]

Hey, wasn't sure where to post so decided this would probably be my best bet. Last couple of days I've encountered a few graphical glitches when browsing with Firefox, I'm unsure whether it is a problem with my graphics card, or something to do with the browser, thinking its the former but I could be wrong,

This is just an example of what happens, has happened on other pages apart from Google too,

Glitched Firefox

Unglitched Desktop

Anyone could shed some light on this,

Cheers.

 

[dexterrr]

Cheers for the feedback guys, i'll investigate the about:config thing, my graphic card drivers are up-to date so I wouldnt think it could be that really, and i'll give the profile thing a try too. It's strange though because it doesn't happen constantly, just randomly the browser glitches out.