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I am so fed up with the error message that adobe flash has crashed.


I am so fed up with the error message that adobe flash plugin has crashed. You have had two years to fix this problem and all your suggested solutions do not work. I cannot see any alternative but to go back to Internet Explorer. It is so frustrating when I am checking my emails and click on a link to get the same message over and over again. Why is it that this problem only happens with Firefox? It does not happen with Internet Explorer and it does not happen with Google Chrome. Otherwise Mozilla Firefox is great.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.9 r900
  • Google Update
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • Next Generation Java Plug-in 10.45.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • GEPlugin
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.05
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • 5.1.20913.0
  • RealNetworks(tm) RealDownloader Chrome Background Extension Plug-In
  • RealNetworks(tm) RealDownloader PepperFlashVideoShim Plug-In
  • RealNetworks(tm) RealDownloader HTML5VideoShim Plug-In
  • RealDownloader Plugin
  • WildTangent Games App V2 Presence Detector
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • RealJukebox Netscape Plugin
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • Virtual Earth 3D 4.00090316005 plugin for Mozilla


  • Firefox 26.0
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0
  • Support URL: https://support.mozilla.org/1/firefox/26.0/WINNT/en-GB/


  • Adblock Plus 2.4 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
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  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Webmail Ad Blocker 4.1 (gmailnoads@mywebber.com)
  • Skype Click to Call ({82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}) (Inactive)


  • incrementalGCEnabled: True


  • adapterDescription: NVIDIA GeForce GT 230
  • adapterDescription2:
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  • directWriteVersion: 6.2.9200.16571
  • driverDate: 10-23-2013
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  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: Google Inc. -- ANGLE (NVIDIA GeForce GT 230 Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Direct3D 10

Modified Preferences

  • browser.cache.disk.capacity: 102400
  • browser.cache.disk.smart_size.enabled: False
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
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  • User JS: Yes
  • Accessibility: Yes
  • Top 10 Contributor
2348 solutions 20818 answers

What have you tried so far?

This is some standard guidance that addresses the most common issues with the Flash Player plugin. I'm sure you've seen some of it before, but just in case:

(1) If you have any recorders/downloaders that interact with Flash media make sure they are as up-to-date as possible, or disable them temporarily.

(2) Disable hardware graphics acceleration in Firefox and in Flash

(A) In Firefox, un-check the box here and restart:

orange Firefox button (or Tools menu) > Options > Advanced > General > "Use hardware acceleration when available"

(B) In Flash, see this support article from Adobe: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues

(3) Disable protected mode (Windows Vista and higher)

See this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

Any luck?

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Question owner

Dear jscher2000

I am a novice computer person and have done some of the things you now mention, i.e. 2 (a) untick "use hardware acceleration when available"

I don now tunderstand what you mean by disable protected mode in Windows Vista and higher - I have Windows 7 on my computer.

I am not a computer expert but I hope that by doing 2(a) it may solve the problem.

I have closed off Firfeox and reloaded it as the instuction told me to do.

Thank you for your help. Firefox is so great but this problem has been annoying me for ages.



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  • Top 10 Contributor
2348 solutions 20818 answers

Hi Anthony, the protected mode feature of the Flash Player plugin is active on Windows 7. It is one of the more challenging things to deactivate because you need to create or edit a file in a protected location that Microsoft makes hard to change. So try the other things first and come back to this one if needed.

Was this helpful to you? 1

Question owner

Dear jscher2000

Thanks so much. I will keep you informed how things go. But if I need to deactivate the protected mode feature and you say it is challenging, then I am not the man as it would be beyond me. I was lucky to be able to do 2(A).

Again I thank you and I will keep you informed.

Regards and thanks, Anthony

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Carm 6 solutions 132 answers


I made an automated script to disable flash player protected mode here:


You can read my blog, i also created a step by step walk though video that thoroughly explains how to disable protective mode the easy way. That is also on my blog.

Best Regards

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  • Top 25 Contributor
  • Moderator
190 solutions 1961 answers

The Mozilla Support article is here: Adobe Flash plugin has crashed - Prevent it from happening again

Detailed manual instructions to disable or re-enable Flash protected mode are here, if the other suggested solutions don't help:

http://kb.mozillazine.org/Flash#Disabling_Protected_Mode_in_Flash_11.3 (applies for Flash 11.3 and above)

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karenhurt44 0 solutions 1 answers

adobe flash is enabled on facebook.com how can i fix thios i have tried everything and nothing works what i have tried

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  • Top 10 Contributor
2348 solutions 20818 answers

Hi karenhurt44, could you describe the problem you're having in more detail?

If you are getting a large blank area in the page where you normally expect to find a Flash game, it could be due to "mixed content": the embedding of non-secure content in a secure page. If you see a gray "shield" icon in the address bar to the left of the address, please check out this article for more information: How does content that isn't secure affect my safety?

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Raf99 0 solutions 6 answers

Helpful Reply

I too have this frustrating problem. I downgraded my flash and that worked great for most videos (ie- youtube). But some videos and sites need an upgraded flash, which of course crashes in firefox. I've updated everything, removed all add-ons, disabled hardware acceleration, and all the KB suggestions.

If I close firefox and re-open it, the same tab/video will work. Later that day its crashing again on the same video/tab. Yet, all these video's, sites, work fine in IE with the same version of flash.

Very frustrating and while I've been a long time fan of FF, I think this will be the last straw. Time to give Torch a try or Chrome maybe.

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  • Top 10 Contributor
2348 solutions 20818 answers

Hi Raf99, did you try disabling the protected mode feature of the Flash Player plugin? This would be for Windows 8, 7, or Vista, not relevant to XP.

The following pages provide different ways to disable it:

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Raf99 0 solutions 6 answers

Alright Jscher2000. Can you tell me why one would have to use protected mode?

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  • Top 10 Contributor
2348 solutions 20818 answers

Hi Raf99, the protected mode feature splits up Flash media into multiple processes with reduced privileges to make it harder for malicious media to attack Windows. Great in theory, but unfortunately buggy in practice.

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Raf99 0 solutions 6 answers

Well that seemed to solve my issue although I tried this before and it did not. Kind of ironic that the "buggy in practice" method works and the normal method is buggy.

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