Firefox 3.5.7 glitch using flash player

[rayburn0]

Binary package hint: firefox-3.5

I am having trouble playing video using flash player in Firefox 3.5.7. I have tried many different work-arounds and implementations of flash player plugins, and I am beginning to think that the problem is in Firefox.

I have another computer running Firefox 3.0.5 and it's not experiencing any problems playing flash.

===============================
lsb_release -rd :
Description: Ubuntu 9.10
Release: 9.10

apt-cache policy firefox-3.5 :
firefox-3.5:
  Installed: 3.5.7+nobinonly-0ubuntu0.9.10.1
  Candidate: 3.5.7+nobinonly-0ubuntu0.9.10.1
  Version table:
 *** 3.5.7+nobinonly-0ubuntu0.9.10.1 0
        500 http://us.archive.ubuntu.com karmic-updates/main Packages
        500 http://security.ubuntu.com karmic-security/main Packages
        100 /var/lib/dpkg/status
     3.5.3+build1+nobinonly-0ubuntu6 0
        500 http://us.archive.ubuntu.com karmic/main Packages

kernel :
2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 01:26:53 UTC 2010 i686 GNU/Linux
==========================
Expectation:
  YouTube video & Hulu video to play same as they play on VLC. And, when expanded to full screen, to still respond to ESC and mouse functions.

Actual :
 video blinks in and out, and controls freeze

ProblemType: Bug
Architecture: i386
Date: Wed Feb 10 15:54:30 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: firefox-3.5 3.5.7+nobinonly-0ubuntu0.9.10.1
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-19-generic i686
XsessionErrors:
 (polkit-gnome-authentication-agent-1:1745): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (firefox:1777): GLib-WARNING **: g_set_prgname() called multiple times

[midwestlinux (mosherjs)]

This problem may be with Flash Player. For some systems when the flashplayer tries to use hardware acceleration the flash player starts to stutter or have other problems. I have this problem with a Dell Laptop with X3100 Intel integrated graphics card. It usually works fine for a while then becomes a slideshow. Try turning of hardware acceleration.

Right click on Flash Player. Click on Settings. Choose hardware acceleration panel. Unclick hardware acceleration.

If setting are grayed out then below may explain problem. In many websites the settings choice is grayed out. But it is available on the You Tube website. Once it is turned off at the You Tub website it remains off.

"Right-clicking on the flash movie also gives me a disabled "Settings..." option.

I've discovered that this is caused when the flash movie is set to be shown in windowless mode (wmode=opaque or wmode=transparent) in flash player 10.

For example, youtube and vimeo videos have wmode=window and doesn't have this problem, but Metacafe uses wmode=transparent and settings option is not clickable.

I've already reported this bug to Adobe (https://bugs.adobe.com/jira/browse/FP-1211).

(tested in hardy - FF 3.0.4 and Opera 9.62, flash player 10, both adobe-flashplugin and official tar.gz from Adobe)"

[Micah Gersten (micahg)]

Thank you for reporting this to Ubuntu. Please provide the results of the following command run in a terminal:

apt-cache policy flashplugin-installer flashplugin-nonfree swfdec-mozilla mozilla-plugin-gnash adobe-flashplugin

This will let us know what flash players you have installed so that we can better diagnose your issue. Thank you.