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Flash hangs Firefox (eventually get script continue/stop dialog)

Posted

After some overdue Windows updates, I got hit with severe hangs when opening any page with Flash media. The window frame controls (e.g., minimize) still worked, but everything inside was inaccessible for minutes at a time. Then I would get a dialog indicating that a script was running slowly and had the opportunity to stop or continue.

I had already disabled hardware graphics acceleration in Firefox and Flash, so the logical next step was to disable the Flash Player's protected mode. That is described in this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

It worked.

The Windows updates, probably only one of which is the culprit, were:

After some overdue Windows updates, I got hit with severe hangs when opening any page with Flash media. The window frame controls (e.g., minimize) still worked, but everything inside was inaccessible for minutes at a time. Then I would get a dialog indicating that a script was running slowly and had the opportunity to stop or continue. I had already disabled hardware graphics acceleration in Firefox and Flash, so the logical next step was to disable the Flash Player's protected mode. That is described in this support article from Adobe under the heading "Last Resort": [http://forums.adobe.com/message/4468493#TemporaryWorkaround Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?] It worked. The Windows updates, probably only one of which is the culprit, were: * [https://technet.microsoft.com/en-us/security/bulletin/ms13-049 Microsoft Security Bulletin MS13-049 - Important : Vulnerability in Kernel-Mode Driver Could Allow Denial of Service (2845690)] * [https://technet.microsoft.com/en-us/security/bulletin/ms13-050 Microsoft Security Bulletin MS13-050 - Important : Vulnerability in Windows Print Spooler Components Could Allow Elevation of Privilege (2839894)] * [https://technet.microsoft.com/en-us/security/bulletin/ms13-047 Microsoft Security Bulletin MS13-047 - Critical : Cumulative Security Update for Internet Explorer (2838727)] * [https://technet.microsoft.com/en-us/security/advisory/2854544 Microsoft Security Advisory (2854544): Update to Improve Cryptography and Digital Certificate Handling in Windows]

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.7 r700
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.03
  • Adobe Shockwave for Director Netscape plug-in, version 12.0.2.122
  • LogMeIn, Inc. Remote Access Components
  • 5.1.20125.0
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers
  • np-mswmp

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0

More Information

{"application": {"userAgent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0", "supportURL": "http://support.mozilla.org/1/firefox/21.0/WINNT/en-US/", "version": "21.0", "name": "Firefox"}, "modifiedPreferences": {"gfx.direct2d.disabled": true}}

kobe 441 solutions 5048 answers

Also note Quicktime plugin could had been disabled too https://support.mozilla.org/en-US/questions/927003 and use vlc as said here

Also note Quicktime plugin could had been disabled too https://support.mozilla.org/en-US/questions/927003 and use vlc as said here
jscher2000
  • Top 10 Contributor

Question owner

Hi colbabomb, I rarely visit sites that use QuickTime (e.g., Apple). The problem pages used Flash (such as the page with the video of last Monday's SuMo meeting).

Hi colbabomb, I rarely visit sites that use QuickTime (e.g., Apple). The problem pages used Flash (such as the page with the video of last Monday's SuMo meeting).