I dont know what is wrong since ive used flash games before on firefox but now all i get is a blank white screen when i click the game.I dont know if something is wrong with the flash player or something but I can view the flash comics so I dont know why it wount work with games.Shockwave based games work though.
Do you have adblock installed?
You might have adblocked the flash server (swf.neoppets.com). Open a flash game, and click AdBlock in the corner. If the only thing in the window that appears is coloured red, you have adblocked it.
No i searched my adblock plus prefrences and its not blocked and its a blank white screen,no red.I waited a while for it to load and it didnt load and it didnt have the "transferring data from..." thing on the bottom of the screen like it normally does when you load something on firefox.
I doubt this will be helpful, but for a while I was having problems with Neopets loading a few flash games, but mostly with images. Basically, the images wouldn't show up on the page no matter what. I kept trying to fix it, but nothing worked, so I just decided to live with it, & then it apparently fixed itself.
It was really weird though.