Perform the suggestions mentioned in the following articles:

• Clear Cookies & Cache
• Fix common audio and video issues

• Start Firefox in -> Diagnose Firefox issues using Troubleshoot Mode to check if your add-ons/extension are causing the problem.
• Also see this article -> Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Check and tell if its working.

You can also try to clear the Flash Cookies as mentioned in the following articles:

-> Flash Website Storage Settings panel:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager07.html

-> Global Storage Settings Panel:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager03.html

-> Flash Local storage settings Help:

• http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html

Problem persists even after suggestions. Still happens in Safe Mode and after clearing cache and cookie. Appear (according to their site) to have latest version of Flash but do get the following message when I go to your link for Website Storage issues.

Global Storage Settings panel AlertThis content requires Flash

Download the free Flash Player now! Get Adobe Flash Player

If it helps, this is the list of plug-ins from Firefox: QuickTime Plug-in 7.6.6 The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site. 7.6.6.0 Up to Date Plugin Icon Flip4Mac Windows Media Plugin The Flip4Mac WMV Plugin allows you to view Windows Media content using QuickTime. 2.4.2.4 Up to Date Plugin Icon Java Plug-In 2 for NPAPI Browsers Java Plug-In 2 for NPAPI Browsers 1.6.0.31 Up to Date Plugin Icon Silverlight Plug-In 5.1.10411.0 5.1.10411.0 Up to Date Plugin Icon Shockwave for Director Adobe Shockwave for Director Netscape plug-in, version 11.6.5 11.6.5.r.635 Up to Date Plugin Icon Shockwave Flash Shockwave Flash 11.2 r202 11.2.202.235 Up to Date

Does the Adobe test page confirm that Flash is installed?

• http://www.adobe.com/software/flash/about/

Perform the suggestions mentioned in the following articles:

• Flash videos won't play full screen
• Try Uninstalling Flash Player as described in this article -> http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html
• Now Reinstall Flash as described in this article -> Install the Flash plugin to view videos, animations and games

Check and tell if its working.

Yes, the Adobe test page confirms I have the current plug-in installed. I've tried uninstalling and reinstalling Flash Player w/o any luck. I've followed all the troubleshooting guides I can find. I don't even know if it is a Flash Player problem but since that seems to be what plays it with Safari, I was guessing it would be the same with Firefox.

I do appreciate any suggestions as I'm at a loss to figure it out.

Perform the suggestions mentioned in the following articles:

• Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

Check and tell if its working.

Troubleshooting plugins doesn't help. It is a puzzle. Even though on the same site, some videos play fine such as http://www.runnerspace.com/video.php?video_id=67439-Kyle-Merber-3-35-59-American-Collegiate-Record-Mens-1500-Tuppeny-Memorial-Last-Chance-Meet-2012

Others don't play such as http://www.runnerspace.com/video.php?video_id=67414-Senior-Boys-1500m-Section-2-TDCAA-Track-Championships-2012 http://www.runnerspace.com/video.php?video_id=67438-Entries-to-Sold-Out-Chicago-Marathon-Available-NFEndurance-org

All video links you provided are playing fine on my system.

• Make sure that you are using the "Remember History" setting as described in this article -> Settings for privacy, browsing history and do-not-track

Check and tell if that works.

Did you clear your Flash Cookies as well as your Firefox Cookies as mentioned in my first reply ??

Did you try Save mode?

• Help > Restart with Add-ons Disabled

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

So mine wasn't working for anything, but then it did in safe mode, so I followed the instructions here on the page below and it worked. Hope this helps someone else!

http://support.mozilla.org/en-US/kb/Troubleshooting-extensions-themes#w_the-problem-does-not-occur-in-safe-mode

Thanks for the ideas. I've tried everything I can find w/o any luck. The problem still occurs in safe mode. I'm giving up and will just use Safari if I need to but thanks for the suggestions.

Perform the suggestions mentioned in the following articles:

• Issues related to plugins -> http://kb.mozillazine.org/Issues_related_to_plugins
• http://kb.mozillazine.org/Flash

Check and tell if its working.

Yes, I've tried these suggestions w/o any success. Problem continues even in safe mode and even after re-installing Firefox. Flash is current so don't know what the issue is. I'll live w/o it but thanks for trying to help.

-> Create a New Profile to check if your current profile is causing the problems, as described in this article -> Basic Troubleshooting - Make a New Profile

• Now start Firefox using this newly created profile.

-> IF that New Profile works then you can recover your History, Bookmarks, Passwords,etc. from the Old Profile, as described in this article -> Recovering important data from an old profile

Check and tell if its working.

I just updated my Flash video player to 11 and now I can't stream videos on Firefox. I've tried some of the suggested fices but no joy. I was in the precess of reinstalling the new version of Flash when I noticed something. The installer page had correctly noted my system was Windows 64-bit, but the Flash player update is for 32-bit! (install_flashplayer11x32_mssd_aih.exe) I tried to contact the Adobe service and support people to ask them about this but they say for Flash support I have to buy a service contract! Anyway, if someone can get a hold of the Flash support people maybe we can get this problem fixed.

Which Windows version are you using ?? Vista ?? Windows 7 ??

• see this article for Flash System Requirements -> http://www.adobe.com/products/flashplayer/tech-specs.html

1. Uninstall Flash Player as described in this article -> http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
   • Restart your system
2. Reinstall Flash as described in this article -> Install the Flash plugin to view videos, animations and games
   • You can also manually select Flash version suited for your system -> http://get.adobe.com/flashplayer/otherversions/
   • After Installing Flash, Restart your system.

Check and tell if its working.

Also see this recently created article -> Flash 11.3 doesn't load video in Firefox

I just spent 4 1/2 hours on the help section trying to figure out why I wasn't able to view videos, after having just installed the Adobe Flash update Thurs or Fri and installing Mozilla Firefox on my computer yesterday afternoon. It turned out to be the RealPlayer mentioned in the Flash 11.3 doesn't load video in Firefox artice. I recommend checking that if nothing else has worked for you. Thanks!

[Rant removed by moderator. Please read Mozilla Support rules and guidelines and remember that this forum is for helping people, thanks. If you need help and are not the person who started this thread, please use https://support.mozilla.org/en-US/questions/new where volunteers can get more details about your setup.]

First of all, I immediately ignore all tech support suggestions that begin with "delete your cookies." As soon as I see that, I know the person hasn't a clue. I have been using PC's for 20 years, and I've had my share of problems. Not a single one was ever solved or alleviated by deleting cookies, despite the fact that tech support people who have no idea how to fix the problem always start with that suggestion.

Secondly, all of your desperate attempts to lay the blame on FlashPlayer or other plugins should be considered in the light of the fact that most of us users are having no problem with the very same plugins on Explorer or Chrome. Please take Mudonja21's reply seriously - I endorse his every word.