[mdlug] Cannot play videos on web browsers - Mythbuntu 12.04

[R Kannan]

Hi,

I am using Mythbuntu 12.04 with the latest patches. Whenever I try to 
play a video on the web browser (Firefox or Chrome)., I get a message 
saying 'libavcodec may be vulnerable or is not supported and should be 
updated to play video". I looked at the package and I am on libcodec 
versio 4.0.8.17 and this seems to be the latest version in ubuntu archives.

Any ideas on what I should be looking for?

Thanks