The Wikipedia .ogv file that you linked plays here with Firefox 26 on Ubuntu 13.04 "Raring Ringtail". Are you still having any HTML5 video problems with Firefox 26 on a recent version of Ubuntu?
** Changed in: firefox (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/940663 Title: LTSP don't support native audio and video in Firefox (HTML5) Status in The Mozilla Firefox Browser: New Status in Linux Terminal Server Project: Invalid Status in “firefox” package in Ubuntu: Incomplete Bug description: This is a tricky bug. Today I needed to play a file in a page that was using jplayer player (jplayer.org). This player use HTML5 capabilities in the suported Browser. My installation of LTSP is on Ubuntu 10.04 and is using the new Firefox 10 (that supports OGG and WebM files). When I tried to listen the file using Jplayer it didn't work. Then I test a only a file http://en.wikipedia.org/wiki/File:Big_Buck_Bunny_small.ogv and... nop... As I see the problem, I'm not sure where is the problem. Work a workaround (using Jplayer) go in Firefox to: about:config change the flags: media.webm.enabled media.ogg.enabled to false. Jplayer will fallback to Flash Player. In chromium is working fine, so the problem is now on Firefox+LTSP To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/940663/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp