The following was information I sent to one of the folks that attended my Avast sponsored Presentation
who ran into this problem. This helped him solve his video problem in Firefox.
It also works in Chrome and Opera. This fix is also being passed on to those who use Revolution Golf to help their golf game.
The following adjustments to the avast! Online Security module will make the video play in your browser.
http://www.screencast-o-matic.com/screenshots/u/Lh/1386398362438-71182.png
http://www.screencast-o-matic.com/screenshots/u/Lh/1386398438574-72122.png
Your screen for this avast! module may look different from mine since I’m already doing
Beta testing on the next program update of the free version of avast!.