When did you update? Your above posted system details list shows a Firefox/7.0.1 user agent.

• Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1

• https://support.mozilla.org/kb/Finding+your+Firefox+version

Which version of the Flash player do you have?

• http://www.adobe.com/software/flash/about/
• http://helpx.adobe.com/flash-player.html

See:

• https://support.mozilla.org/kb/keep-flash-up-to-date-and-troubleshoot-problems
• https://support.mozilla.org/kb/flash-113-doesnt-load-video-firefox

it automatically updated yesterday i think. maybe i should try updating again?

Don't update flash.. you need to downgrade it - [To Downgrade Flash]

The newest flash release does not work well with firefox.

I personally believe that its related to the 64bit issue.. Flash thinks your browser should run the 64bit version, because you windows is 64bit, But Firefox IS NOT 64bit compatible.

I have no issues with the newest flash install with the newest firefox on my 32bit machines.. And now issues if I run Waterfox on the 64bit machines.

Anyways, just downgrade Flash and you will have your videos back.

thank you so very much! that totally fixed it. thanks for your help.