I also had this problem with firefox 3.0.6 and Ubuntu Hardy Heron. I fixed it after having removed and reinstalled adobe flash plugin (I had also restarted my firefox after the plugin removal and the plugin installing as bug #174708)
-- Youtube video are not displayed although I have the flash plugins installed https://bugs.launchpad.net/bugs/315736 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