I have Ubuntu 11.04 with Firefox 13.0.1.
I'm not able to watch videos from Internet (YouTube, news site, ecc...).
I have installed all the flash plugins, I'm able download the video, but I'm not able to watch them.
I have the same problem also with Chromium, message "Missing Plug-in".
I also tried all the update (Ubuntu, Firefox, Chromium), with no apparent effect.
Do you have any idea about what I can do?
p.s.: It's the first time for me in this forum, excuse me if I have posted this thread in the wrong place