Anyone that uses Firefox never make spelling mistakes. Because of the AWESOME spell check. I used to make lots of mistakes, but now I've got Firefox and I am fine now. Am I right?
It's an add-on right? I don't think everyone has the add-on so I'm guessing that the proportion of internet explorer :firefox spelling mistakes is just higher than 1
Your word thankz is spelled wrong, didn't it show you? Its an in-built tool with FF and no add-on is needed for the spell check.