Corrections in red. Stylistics in blue; however, your variants were correct.
There is a solution for Firefox, but it's a little bit more complicated.
Please note that in the case of Firefox, browser changes are kind of permanent.
I hope this helps, and that you will see and understand why so many people can't stop complaining about the new website.
P.S. All I mentioned in this note is just my advice. You take full responsibility for your actions. I'm saying this because someone might think he lost his friends on Livemocha because he logged in using Linux.
Your written English is stupendous.