Flash Player not working on Firefox

1. Download the uninstaller from Here

2. Exit browser

3. Run the uninstaller

4. Reboot PC

5. Delete all files inside the following folders:

a) C:\Windows\System32\Macromed\Flash

b) C:\Windows\SysWOW64\Macromed\Flash

6. Install both installers bellow:

a) For Internet Explorer click here

b) For other Browsers (plug in) click here




source: http://forums.adobe.com/message/4124635