Given the workaround shown in the referenced thread, it seems likely that it could be Flash rather than firefox that's at issue; although the curiosity of why it apparently works on Mint is odd:
see: http://helpx.adobe.com/x-productkb/multi/flash-player-11-problems-playing.html#id_48891 Step One: Install HAL sudo apt-get install hal Step Two: Quit your web browser Step Three: Clean out the Adobe Flash folder: cd ~/.adobe/Flash_Player rm -rf NativeCache AssetCache APSPrivateData2 ** Also affects: flashplugin-nonfree (Ubuntu) Importance: Undecided Status: New ** Changed in: flashplugin-nonfree (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1030365 Title: Cannot authenticate nbcolympics.com (can't stream Olympic coverage) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1030365/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
