I have the same behavior on my machine (8.10). I have to download the videos and play them with totem.
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.6) Gecko/2009020911 Ubuntu/8.10 (intrepid) Firefox/3.0.6 ii gnash 0.8.4-0ubuntu1 free SWF movie player ii gnash-common 0.8.4-0ubuntu1 free SWF movie player - common files/librari ii mozilla-plugin 0.8.4-0ubuntu1 free SWF movie player - Plugin for Mozilla a -- Youtube videos do not play https://bugs.launchpad.net/bugs/327901 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs