Hi guys - for me this helped. If Flash player is working in IE, then: Close Firefox - open Internet Explorer - got to the Adobe Flash Player Site:

http://get.adobe.com/de/flashplayer/

In IE you can see there is the 64-bit version - (in Firefox there was just the 32-bit version) - got to: (others)

http://get.adobe.com/de/flashplayer/otherversions/

choose your system and version download it via internet explorer and install the adobe flash player restart firefox and it should work. helped me after wasting one day of my life to find a solution, alle sites work just fine now. hope this helps.

Geprobeerd, werkt bij mij niet, jammer. Iemand nog een ander oplossing?

Try this:

• https://support.mozilla.org/kb/keep-flash-up-to-date-and-troubleshoot-problems
• http://forums.adobe.com/thread/1018071?tstart=0

Ja, geweldig deze" http://forums.adobe.com/thread/1018071?tstart=0 " heeft geholpen Bedankt Cor-el

@Cor-el, the last one solved it, THANK YOU!

You're welcome