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Flash stops working after a certain period of time (non-standard issue)

  • 11 replies
  • 8 have this problem
  • 3 views
  • Last reply by Moebius

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Ok, here i am with this problem again, the first time it really made me reinstall the entire OS (yes, it's THAT BAD), and now it's back again. Not that i really wanna waste time looking for that which is impossible to find, yet i really don't wanna reinstall the entire thing again. Here goes:

1) It happens in Firefox ONLY. Other browsers don't seem to be affected by whatever issue this is. 2) It happens in any Firefox version, old/new - no difference. It can go all the way back to 9 even, i've tried quite a handfull of those. 3) Yes, i did reinstall Firefox many times (with preliminary complete deinstallation using Revo Uninstaller) 4) Yes, i did reinstall Flash countless times, and no, it doesn't matter which version of flash it is, just as in case with the browser. All the same. 5) Yes, i did check the PC for any possible malware using several different anti-malware apps. Nothing. Clean. 6) I checked the event viewer, no messages there.. just nothing.

What happens is, that it simply stops playing ANY flash after some time. Animation, video... whatever. So it's not youtube specific thing. When on youtube i just get black frame and an annoying blinking/pending tab on the taskbar. That's it, stuck in a cycle. If i restart the browser it's all back to normal again. But a little while later (i dunno when exactly, about 15 minutes later perhaps) it goes into glitch again. Ever since my last reinstallation (which is due to this prob) it's been quite a while without any issues. But now it's back again, so instead of reinstalling everything i simply wanna know: what THE HECK is this crap? It really pisses me off now. And no, i don't wanna use another browser, i need Mozilla.

Ok, here i am with this problem again, the first time it really made me reinstall the entire OS (yes, it's THAT BAD), and now it's back again. Not that i really wanna waste time looking for that which is impossible to find, yet i really don't wanna reinstall the entire thing again. Here goes: 1) It happens in Firefox ONLY. Other browsers don't seem to be affected by whatever issue this is. 2) It happens in any Firefox version, old/new - no difference. It can go all the way back to 9 even, i've tried quite a handfull of those. 3) Yes, i did reinstall Firefox many times (with preliminary complete deinstallation using Revo Uninstaller) 4) Yes, i did reinstall Flash countless times, and no, it doesn't matter which version of flash it is, just as in case with the browser. All the same. 5) Yes, i did check the PC for any possible malware using several different anti-malware apps. Nothing. Clean. 6) I checked the event viewer, no messages there.. just nothing. What happens is, that it simply stops playing ANY flash after some time. Animation, video... whatever. So it's not youtube specific thing. When on youtube i just get black frame and an annoying blinking/pending tab on the taskbar. That's it, stuck in a cycle. If i restart the browser it's all back to normal again. But a little while later (i dunno when exactly, about 15 minutes later perhaps) it goes into glitch again. Ever since my last reinstallation (which is due to this prob) it's been quite a while without any issues. But now it's back again, so instead of reinstalling everything i simply wanna know: what THE HECK is this crap? It really pisses me off now. And no, i don't wanna use another browser, i need Mozilla.

Chosen solution

Glad you seem to have fixed the problem.
I will mark Computer Whiz's answer as the thread solution, as that has the protected mode link.

The FlashPlayer's protected mode seems to be involved in more than one problem.

I know that the Firefox Aurora channel has a new and experimental reporter that deals with Flash Hangs and crashes. At present we tend not to be able to get to the bottom of many of these issues.

Read this answer in context 👍 0

All Replies (11)

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May you please provide troubleshooting information?

Please do the following:

  • Click the Firefox button at the top left, then click the Help menu and select Troubleshooting Information from the submenu. If you don't have a Firefox button, click the Help menu at the top and select Troubleshooting Information from the menu.

Now, a new tab containing your troubleshooting information should open.

  • At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
  • Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.

If you need further information about the Troubleshooting information page, please read the article Use the Troubleshooting Information page to help fix Firefox issues.

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Application Basics

       Name
       Firefox
       Version
       23.0.1
       User Agent
       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0
       Build Configuration
         about:buildconfig
 Extensions
       Name
       Version
       Enabled
       ID
       Adblock Plus
       2.3.2
       true
       {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}
       Easy YouTube Video Downloader
       7.0
       true
       {c0c9a2c7-2e5c-4447-bc53-97718bc91e1b}
       Visual Bookmarks
       1.9
       true
       vb@yandex.ru
       HTML5 location provider
       3.6.2
       false
       {B100D0FF-0001-8CE4-2790-AACE49B8AE35}
 Important Modified Preferences
     Name
     Value
       accessibility.typeaheadfind.flashBar
       0
       browser.cache.disk.capacity
       358400
       browser.cache.disk.smart_size.first_run
       false
       browser.cache.disk.smart_size.use_old_max
       false
       browser.cache.disk.smart_size_cached_value
       337920
       browser.newtab.url
       yafd:tabs
       browser.places.smartBookmarksVersion
       4
       browser.startup.homepage_override.buildID
       20130814063812
       browser.startup.homepage_override.mstone
       23.0.1
       browser.tabs.onTop
       false
       dom.mozApps.used
       true
       dom.w3c_touch_events.expose
       false
       extensions.lastAppVersion
       23.0.1
       font.internaluseonly.changed
       true
       gfx.direct3d.last_used_feature_level_idx
       0
       gfx.direct3d.prefer_10_1
       true
       network.cookie.prefsMigrated
       true
       network.http.max-persistent-connections-per-server
       4
       places.database.lastMaintenance
       1379514679
       places.history.expiration.transient_current_max_pages
       41499
       plugin.disable_full_page_plugin_for_types
       application/pdf
       plugin.importedState
       true
       plugin.state.flash
       2
       plugins.load_appdir_plugins
       true
       privacy.donottrackheader.enabled
       true
       privacy.sanitize.migrateFx3Prefs
       true
       privacy.sanitize.timeSpan
       3
       storage.vacuum.last.index
       1
       storage.vacuum.last.places.sqlite
       1378092833
   user.js Preferences
   Your profile folder contains a
     user.js file, which includes preferences that were not created by Firefox.
 Graphics
       Adapter Description
       NVIDIA GeForce GT 240
       Adapter Drivers
       nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
       Adapter RAM
       512
       ClearType Parameters
       Gamma: 2100 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50
       Device ID
       0x0ca3
       Direct2D Enabled
       true
       DirectWrite Enabled
       true (6.2.9200.16571)
       Driver Date
       1-18-2013
       Driver Version
       9.18.13.1106
       GPU #2 Active
       false
       GPU Accelerated Windows
       1/1 Direct3D 10
       Vendor ID
       0x10de
       WebGL Renderer
       Google Inc. -- ANGLE (NVIDIA GeForce GT 240)
       AzureCanvasBackend
       direct2d
       AzureContentBackend
       direct2d
       AzureFallbackCanvasBackend
       cairo
 JavaScript
       Incremental GC
       true
 Accessibility
       Activated
       false
       Prevent Accessibility
       0
 Library Versions
       Expected minimum version
       Version in use
       NSPR
       4.10
       4.10
       NSS
       3.15 Basic ECC
       3.15 Basic ECC
       NSSSMIME
       3.15 Basic ECC
       3.15 Basic ECC
       NSSSSL
       3.15 Basic ECC
       3.15 Basic ECC
       NSSUTIL
       3.15
       3.15
more options

Try to disable hardware acceleration in Firefox.

You can check for problems with current Flash plugin versions and try these:

  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
  • disable hardware acceleration in the Flash plugin
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That's what i thought of doing myself. BUT.. there remains only one question: why didn't it happen earlier?? Why did it take so long to occur? As first time, so as second after reinstallation of the OS. By the way.. Win 7 here. Just saying.. this thing doesn't happen immediately. It comes with time. I dunno, seems like either something gets overloaded with stuff somewhere, or each time i accidentally run into an obscure installation of some conflicting apps.. i have no other assumption. But anyway.. i'll try your recommendation. Thanks for now, but stay tuned for more, cause probably it ain't the case.

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Recent crashes of certain multimedia contents (this includes Youtube videos, certain flash games and other applications) in conjunction with Firefox are most probably caused by a recent Flash update and/or a malfunctioning browser plugin such as Real Player.

In order to remedy the problem, please perform the steps mentioned in these Knowledge Base articles:

Other, more technical information about these issues can be found under these Links:


Please tell us if this helped!

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Ok, thank you. For now i simply reset firefox settings and such. Just in case. It's still ok, but i bet it will be back pretty much soon. So i'll let you know if i performed all the things from above.

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Alright, i did as you told. Disabled hardware acceleration, disabled protected mode, created mms.cfg file and put it in windows/system32/macromed/flash:

ProtectedMode = 0 AutoUpdateDisable=0 SilentAutoUpdateEnable=1

The problem still persists. After a little while as earlier flash goes into glitch. It clearly does not depend on flash seetings. It's related to how firefox works and processes memory as it seems. Maybe it's not even mozilla issue, but how come it occurs in Firefox ONLY?.. That's the question... awaiting your reply. Meanwhile i'm gonna try using firefox in protected mode and see what happens...

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If you haven't already, try installing Firefox using the method below:


Please follow these steps:

Note: You might want to print these steps or view them in another browser.

  1. Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
  2. After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
  3. Delete the Firefox installation folder, which is located in one of these locations, by default:
    • Windows:
      • C:\Program Files\Mozilla Firefox
      • C:\Program Files (x86)\Mozilla Firefox
    • Mac: Delete Firefox from the Applications folder.
    • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
  4. Now, go ahead and reinstall Firefox:
    1. Double-click the downloaded installation file and go through the steps of the installation wizard.
    2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.

Please report back soon.

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Wait.. i think i just fixed it. The problem was.. i edited the wrong mms.cfg... i just found SysWOW64 folder, edited mms.cfg the same way and boom... things went straight to normal even without restarting Firefox.... i think this really did the trick. However.. the question still remains: why doesn't it happen immediately after complete reinstallation... it would take months for it to turn up. Oh well.. who cares. Thanks for everything.

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Chosen Solution

Glad you seem to have fixed the problem.
I will mark Computer Whiz's answer as the thread solution, as that has the protected mode link.

The FlashPlayer's protected mode seems to be involved in more than one problem.

I know that the Firefox Aurora channel has a new and experimental reporter that deals with Flash Hangs and crashes. At present we tend not to be able to get to the bottom of many of these issues.

more options

Yes, i can now confirm that disabling protected mode in flash has definitely solved the issue. Ever since i did it there have been no problems whatsoever playing flash elements. Thanks a lot again, and.... SOLVED.