Flash Videos Freeze in Firefox

Hi,
I have an HP 6730b Laptop which I've recently re-installed due to an SSD upgrade. The laptop is now running:
- Windows 7 Professional 64-bit SP1 with all the latest updates.
- Latest Firefox 27
- Latest Adobe Flash 12.
The problem is that, whenever I try to play a video that uses flash in Firefox (e.g. youtube, news.bbc.co.uk), the video freezes as does Firefox. The only way to shut it down is then to kill the process in task manager. Note that Firefox doesn't actually crash so no crash log is generated.
The following is what I've tried (all with no affect) in trying to solve this issue:
- Disabled Flash ProtectedMode.
- Uninstalled Flash completely (using instructions from Adobe: http://forums.adobe.com/thread/928315) and re-installed.
- Uninstalled and reinstalled Firefox.
- Disabled Hardware acceleration in Firefox
- Disabled Hardware acceleration in Flash settings (right click on Flash App -> settings).
- Updated Video graphics card drivers to latest version (Intel Series 4 Express Chipset).
At this stage, I'm still without a solution. I would like to stick to using Firefox as it's my preferred browser but I'm running out of options. Ironicially, Internet Explorer works absolutely fine on the same laptop.
Any help would be appreciated.
Thanks!
Joe

Hi Joe,
Thank you for contacting Mozilla Support. And you have tried all the workarounds that this forum has in the knowledge base. The past update to 11.3 had a work around, but I am not sure if it is no longer valid.
*This was the temporary work around for the last version[http://forums.adobe.com/thread/1018071#TemporaryWorkaround]
It is also possible to submit a report the next time that it crashes.
Please follow the steps below to provide us crash IDs to help us learn more about your crash.
#Enter ''about:crashes'' in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
#Copy the '''5''' most recent Report IDs that start with '''bp-''' and paste them into your response here.
[[Image:SubmittedCrashReports-Win7|width=520]]
 
Thank you for your help!
More information and further troubleshooting steps can be found in the [[Firefox crashes - Troubleshoot, prevent and get help fixing crashes]] article.

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https://support.mozilla.org/sv/questions/782366
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i am going crazy with this problem. it happens in every browser in all flash videos, HTLM5 videos don't have this problem and it only happens in Win 8.1
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Xircal wrote:
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If none of the issues relates to your own, then post your question in their Help forum, link near the foot of the page.
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Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

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How do I troubleshoot Flash Player's protected mode for Firefox?
We also have a new 11.7 beta available that contains significant changes to improve protected mode. I suspect you might be blocked from installing it, but if this option is available to you I would recommend giving it a try.
3/7/2013 - Flash Player 11.7 Beta
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''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox.
* On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
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Hi Rider_from_north
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This site is best viewed with Mozilla FireFox 3.x+ (and above) with either Adobe Flash Player 8+ (and above) at a minimum screen resolution of 1024 x 768. We also recommend that you enable both JavaScript and Cookies in your chosen browser's settings. Obviously things have moved on since then and the version of Firefox I installed around May 2013 would have been around 22.0
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Can you please confirm that this is the summary of the issue you are facing
#On a site using Flash, and using Firefox 22.0, you were able to view English, Pinyin, Chinese characters on the flash video
#You upgraded Firefox to the latest version from the play store, and also have the latest Flash version, but the same Flash video doesn't display the Chinese characters now
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== URL of affected sites ==
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