Boo. What version of Firefox are you using? I've had the game work on Firefox on a windows device... so maybe updating FF would help? Also, if you check the Tools->Web Developer -> Web Console, are there any error messages that stand out?
This gam is too hard. Personally, I recommend typing out The Merchant Of Venice or some other novel every level. It's pretty much all you can do when you've already used every common word that comes to mind easily and level 5 still isn't over yet.
Boo. What version of Firefox are you using? I've had the game work on Firefox on a windows device... so maybe updating FF would help? Also, if you check the Tools->Web Developer -> Web Console, are there any error messages that stand out?