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Firefox 14.01 and Flash 11.3 Issues

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New Contributor

Firefox 14.01 and Flash 11.3 Issues

I was previously having problems with Firefox 13 (forget which version specifically) after it updated with using Flash as many others were. I was excited to see that a v. 14 is now out and updated hoping it would solve my issues, but I am still having trouble. I feel confident it is an issue with Flash; I have gone through and individually disabled and re-enabled add-ons, and can use Firefox fine when Flash is disabled, and everyone goes down hill once re-enabled.

In general, my issues are that Gmail, Facebook, and many other websites won't load when Flash is enabled. They will start to open, get stuck, and the Firefox completely freezes. Turning off the add-on fixes all of this, and turning it back on brings it back.

I have Windows Vista as my O/S.

Any suggestions for further troubleshooting? I've tried uninstalling and reinstalling both Firefox and Flash.

1 ACCEPTED SOLUTION

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Site Moderator

Re: Firefox 14.01 and Flash 11.3 Issues

Flash Player 11.4 is now released. It includes fixes for many issues as well as a security update (see Adobe's Announcement and the release notes for details.)

You can use the links in this article to download and install Flash 11.4

For anyone who may have disabled protected mode in Flash 11.3 and is now updating to Flash 11.4, you should re-edit the mms.cfg file to remove the ProtectedMode=0 line (reference) to see if the problems are now resolved.

21 REPLIES
Site Moderator

Re: Firefox 14.01 and Flash 11.3 Issues

Unfortunately, the Flash problems are waiting for an update from Flash to fix the majority of them. Flash 11.3 doesn't load video in Firefox [[Flash 11.3 crashes]

Your best solution is to downgrade to Flash 10.3, and use that until an update for Flash is released.

New Contributor

Re: Firefox 14.01 and Flash 11.3 Issues

@ tylerdowner I did not find this reply helpful. I uninstalled Flash and then followed a link to get version 10.3 which I downloaded. I tried to install this whereupon I got the message that this was not the latest version of Flash therefore I couldn't install it. :-(

New Contributor

Re: Firefox 14.01 and Flash 11.3 Issues

@Tylerdowner Thanks for the response. It allowed me to download version 10.3. There are a few websites I go to that require the newest version, but in the big picture I can at least use my web browser now!

@viking42 Sorry to hear it didn't go as well for you! Here's where I dowloaded mine: http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html

Not sure if that will result in anything different or not. Good luck!

New Contributor

Re: Firefox 14.01 and Flash 11.3 Issues

@neffer85. Thanks for your help! I downloaded the version and read the accompanying text which includes this Before installing a different Flash Player we recommend uninstalling the currently installed Flash Player and restarting the system. For more information on removing and installing the Flash Player, see How to uninstall the Flash plug-in and ActiveX Control (TechNote 14157, http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=tn_14157). If you previously installed a version of Flash Player for Internet Explorer, then you may be prevented from installing an earlier version. To resolve this issue, follow the additional instructions found in Safe versions security restrictions when installing Flash Player (TechNote kb402435, http://kb.adobe.com/selfservice/viewContent.do?externalId=kb402435&sliceId=2). I think the clue is that I didn't restart the system after uninstalling the newest version. I shall have to try again....

New Contributor

Re: Firefox 14.01 and Flash 11.3 Issues

This is the Solution that I found, thing is Adobe added something called "Protection Mode" to Flash in 11.3 and you need to disable it and all is well.

To do that you need to restart your pc so you know flash is turned off other wise you can't modify the config files for it.


For 32bit users:

C:\Windows\System32\Macromed\Flash\mms.cfg

For 64bit users:

C:\Windows\SysWOW64\Macromed\Flash\mms.cfg


In both cases all you need to do is add:

ProtectedMode=0

To the next line in the file and save it.

Worked for me, and I had been searching for weeks, if it works for you please do what you can to spread the word!

Support Forum Moderator

Re: Firefox 14.01 and Flash 11.3 Issues

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New Contributor

Re: Firefox 14.01 and Flash 11.3 Issues

Both Chrome and IE are working perfectly with Flash 11.300, I don't believe it is a flash problem. Don't change anything in the CFG file or any flash file. Firefox needs to be fixed absolutely.

Legendary Contributor

Re: Firefox 14.01 and Flash 11.3 Issues

Hi nofal, you're right that IE and Chrome are not affected, and here's why: the Flash 11.3 protected mode is a unique feature available on Firefox in Windows Vista and Windows 7. It has created problems for some people and not others. Mozilla and Adobe have been working together since shortly after Flash 11.3 was released on June 8th to work out the kinks so that all users could benefit from this feature, but I don't think we're there yet. Flash 11.4 is available for testing if anyone is interested.

Site Moderator

Re: Firefox 14.01 and Flash 11.3 Issues

Flash Player 11.4 is now released. It includes fixes for many issues as well as a security update (see Adobe's Announcement and the release notes for details.)

You can use the links in this article to download and install Flash 11.4

For anyone who may have disabled protected mode in Flash 11.3 and is now updating to Flash 11.4, you should re-edit the mms.cfg file to remove the ProtectedMode=0 line (reference) to see if the problems are now resolved.