You can check for problems with current Shockwave Flash plugin versions and hardware acceleration in Firefox and try this:

• make sure you have the latest Flash version:
  http://www.adobe.com/special/products/flashplayer/fp_distribution3.html
• check for updates for your graphics drive drivers
  https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
• disable protected mode in the Flash plugin (Windows Vista and later)
  https://support.mozilla.org/kb/adobe-flash-protected-mode-firefox
• disable hardware acceleration in the Flash plugin
  https://helpx.adobe.com/flash-player/kb/video-playback-issues.html
• disable hardware acceleration in Firefox
  https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

See also:

• http://kb.mozillazine.org/Flash#Troubleshooting

Some of your crash reports weren’t sent to the Mozilla Servers.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

here are the reports requested: bp-54cdd0f5-cd53-4d3a-ae93-3a30c2151225 12/25/2015 7:55 AM bp-97e3108b-214d-4734-b4fa-72f542151225 12/25/2015 7:44 AM bp-8f0f6176-6f1c-497d-81f8-0905a2151225 12/25/2015 7:43 AM bp-70ed7a33-c09c-44fd-9fcc-dcfe52151225 12/25/2015 7:42 AM bp-33e0957f-b3dc-4e0e-8d1a-5a4052151225 12/25/2015 7:40 AM bp-2317c0ef-3355-4cdc-b80b-3d6722151225 12/25/2015 7:38 AM

Product Firefox Version 42.0 Build ID 20151029151421 Release Channel release OS Windows NT OS Version 6.0.6002 Service Pack 2

Signature hang

Process Type plugin Shockwave Flash Version: 20.0.0.235

Attention Sumo's there are 15 related bug reports.

If you have problems with current Shockwave Flash plugin versions then check this:

• see if there are updates for your graphics drivers

https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

• disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)

https://forums.adobe.com/message/4468493#TemporaryWorkaround

• disable hardware acceleration in the Flash plugin

https://forums.adobe.com/thread/891337 See also:

• http://kb.mozillazine.org/Flash#Troubleshooting

Issues have been previously linked to the McAfee Site Advisor extension. Try to disable it and see if the problem persists.

http://service.mcafee.com/faqdocument.aspx?id=TS100162 How to uninstall SiteAdvisor

To disable it: Type "about:addons" in the Location bar Find the extension and click on its "Disable" button