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Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

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Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

Had Adobe Flash Player 11.3 r300 and it stopped showing videos, etc. in Firefox a few days ago. Now I've installed v 11.4 r402 and it still gives error message "Adobe Flash Player ... has stopped working." I uninstalled, downloaded again and reinstalled -- with the same result. No videos. Firefox Plugin check page shows it installed correctly. Any solutions?

1 ACCEPTED SOLUTION

Accepted Solutions
Mozilla Support Contributor

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

For 11.3, one of the workarounds was to disable protected mode. See this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox? This appears to still be applicable in Flash 11.4.

You also could consider rolling back to Flash 10.3. However, some content may require new features of Flash 11.x. This article has the steps: Adobe Flash plugin has crashed - Prevent it from happening again.

64 REPLIES
Mozilla Support Contributor

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

For 11.3, one of the workarounds was to disable protected mode. See this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox? This appears to still be applicable in Flash 11.4.

You also could consider rolling back to Flash 10.3. However, some content may require new features of Flash 11.x. This article has the steps: Adobe Flash plugin has crashed - Prevent it from happening again.

New User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

I believe that there is a problem with compatibility between Firefox 15 and flash player 11.4 my work around seems to work in that as I could not find a previous version of flash player I found a previous version of Firefox. Had to change auto updates first to notify when updates available,installed Firefox 14 and then flash player 11.4 every thing seems fine now.

New User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

I chose to do a clean uninstall of v. 11.4 and then installed v. 10.3 as suggested, following the good directions provided. Happy to say this solved the problem! Thank you.

Regular User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

Warning: Installing Adobe Flash 10.3

The instructions in the 11.3 crash article on installing the 10.3 don't tell you that the Active X Flash version must also be installed because the Adobe Uninstaller uninstalls ALL installed Flash and certain programs require that to work properly. I reported this two months ago and although I was thanked for it it was ignored by Staff and only corrected in the viewing videos problem article, which links to the crash article. If I have to do the job of Staff I'm happy to oblige, since there is no excuse for this. I actually corrected this same error by a Mozilla QA engineer who left out this same step in her testing on a bug report, and I got the expected result, she didn't.

jscher2000's recommendations are good, I'm only supplementing the crash article instructions for anyone who needs that.

To Uninstall 11.4 http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html


To Install 10.3.183.23        

Active X version For Internet Explorer http://fpdownload.macromedia.com/get/flashplayer/current/licensing/win/install_flash_player_10_activ...

For Firefox http://fpdownload.macromedia.com/get/flashplayer/current/licensing/win/install_flash_player_10_plugi...

New User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

Did anybody ask themselves why would adobe offer Chrome during flash installation ? why they didn't offer Firefox, simply because they are not willing to work with Firefox team to fix the problem which will eventually ends by forcing every body to switch to Chrome specially that YouTube and Google are teamed together so all the features for flash movies played on Firefox will not work while with Chrome it will work. Just my opinion.. The following works for mw: 10.3 plugin - Checkmate link. Firefox 13.01 dom.ipc.plugins.enabled;false dom.ipc.plugins.java.enabled;false dom.ipc.plugins.parentTimeoutSecs;1 dom.ipc.plugins.processLaunchTimeoutSecs;10 dom.ipc.plugins.timeoutSecs;10 dom.ipc.processCount;1

It is been fast, no crashes, on Vista 32bit.

New User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

CheckMate -- thanks for the warning that the Active X Flash version must also be installed with 10.3. Could you tell me how to find that?

Regular User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

@artlife

I actually posted the direct link for it in the Warning, where it says "For Internet Explorer" . That's the Active X Flash version as it's called. Don't worry about the technical difference between that and the plugin for Firefox. Just click on the link  and follow the simple instructions. But only AFTER you run the Adobe uninstaller. I'll copy it here for you. I only used the Active X term so you if you see it called that you'll know what it means. But I'll clarify that in the Warning. Sorry if I didn't make it clear.  

To Install the 10.3 Active X Flash version for Internet Explorer

 http://fpdownload.macromedia.com/get/flashplayer/current/licensing/win/install_flash_player_10_activ...
Regular User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

@nofal

Interesting opinion! I've been wondering about Adobe's partnership with Chrome myself and how it effects how hard they care to work on Firefox. That certainly could explain Adobe's very poor beta testing and blaming RealPlayer for the conflict Adobe caused and ONLY started apologizing and saying they were now coordinating with Mozilla Developers only later when they got so much criticism they had no choice. And where was Firefox in all this? Following Adobe's moronic recommendation to disable RealPlayer instead of advising users as I was from the beginning, to roll back the defective update if you're having the viewing videos problem!

Regular User

Re: Adobe Flash Player 11.4 quits working, won't show videos even after reinstalling.

I had a different problem with 11.4 . I'll start a new thread but I'll ask if anybody's seen this here. The videos play fine, RealPlayer download button appears and works normally, but after simply pausing a video on YouTube, I lose the scrolling ability on that page. The ONLY way to get it back is to restart Firefox but then it happens again. This only happens with YouTube, and only with Firefox, not IE9 or Chrome. Doesn't happen with other sites. Tried disabling Protected Mode - no difference. Reinstalling the driver and software for the Synaptics touchpad doesn't fix it. There's no conflict with RealPlayer. Their engineers fixed all problems with Adobe and Firefox with and it was tested with the 11.4 in beta, and even Adobe's engineer Jeromie Clark tested it with the 11.3 and admitted RealPlayer had fixed everything with Flash. This happens with both FF14.0.1 and Firefox 15.0. Rolling back to the 10.3 fixes it. Anybody else getting this problem?

I'm using an HP DV7 Select Edition with Windows 7 64 bit.