Thank you for reporting this to Ubuntu. Sometimes Firefox profiles can become corrupt and/or extensions can conflict. Could you please try this with a new profile and see if the problem still exists? You do not need to delete your old profile to test. If this helps, you might want to try to disable all your extensions and re-enable them one by one until you find the problematic one.
You can start the profile manager with the following command: firefox -ProfileManager ** 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/934085 Title: can't see video Status in “firefox” package in Ubuntu: Incomplete Bug description: Can't view videos. I did see them all' up to ~2 weeks ago. I can see them on other browser... ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: firefox 10.0+build1-0ubuntu0.11.10.1 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic i686 AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 ApportVersion: 1.23-0ubuntu4 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gilk 1605 F.... pulseaudio /dev/snd/pcmC0D0p: gilk 1605 F...m pulseaudio BuildID: 20120129141551 CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd8524000 irq 47' Mixer name : 'Analog Devices AD1981' Components : 'HDA:11d41981,103c30c1,00100200 HDA:14f12c06,103c1379,00100000' Controls : 12 Simple ctrls : 10 Channel: release Date: Fri Feb 17 12:13:29 2012 ForcedLayersAccel: False IfupdownConfig: auto lo iface lo inet loopback IncompatibleExtensions: LastPass - ID=supp...@lastpass.com, Version=1.90.0, minVersion=1.9a2, maxVersion=1.9.6, Location=app-profile, Type=extension, Active=Yes BabelFish - ID={ca0849e8-2c76-42ae-9abe-34e14d337acf}, Version=1.96, minVersion=3.5, maxVersion=6.*, Location=app-profile, Type=extension, Active=Yes IpRoute: default via 192.168.1.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.8 metric 2 Profiles: Profile0 (Default) - LastVersion=10.0/20120129141551 (Running) RunningIncompatibleAddons: True SourcePackage: firefox UpgradeStatus: Upgraded to oneiric on 2011-10-15 (124 days ago) UserJS: network.protocol-handler.external.picasa - true network.protocol-handler.app.picasa - /usr/bin/picasa WpaSupplicantLog: dmi.bios.date: 09/13/2007 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68MCD Ver. F.0A dmi.board.name: 30C1 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 68.32 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68MCDVer.F.0A:bd09/13/2007:svnHewlett-Packard:pnHPCompaq6910p:pvrF.0A:rvnHewlett-Packard:rn30C1:rvrKBCVersion68.32:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP Compaq 6910p dmi.product.version: F.0A dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/934085/+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