• "Clear the Cache": Firefox > Preferences > Advanced > Network > Offline Storage (Cache): "Clear Now"
• "Remove the Cookies" from sites that cause problems: Firefox > Preferences > Privacy > Cookies: "Show Cookies"

Start Firefox in Use Troubleshoot Mode in Firefox to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

I tired all of that and still no help. I have asked friends to try this on their Firefox and it works so not sure what is wrong with my settings. Any other suggestions?

Has anyone found a fix for this? Thanks

seemed to fix it for me, once i started up in " safe mode" so thanks i'm glad it solved it, also i removed a yt downloader i installed recently which also might have caused the problem since it was inconcurance in time the problem started, i got an 10.5.8 and the ad on might have been banging things up.

Thanks. Thanks a lot.

Launch RealPlayer

   Click the RealPlayer icon in the upper left corner of the window and choose Preferences.
   Choose Download & Recording from the left hand panel
   Uncheck "Enable Web Download & Recording for these installed browsers"
   Click OK and close RealPlayer
   Restart Firefox