This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

plugin-container.exe using high CPU, Flash is not in play. What's the problem?

  • 1 reply
  • 2 have this problem
  • 3 views
  • Last reply by FredMcD

more options

Computer and Firefox is running slow, culprit appears to be plugin-container.exe using up CPU. The only plugins I have on "always activate: is "Open H264 Video Codec provided by Cisco Systems, Inc", which does not give the option of asking to activate.

Silverlight, Microsoft Office, Google Update and Adobe Acrobat are the only other non-disabled Plugins.

Any ideas on what could be causing this?

Computer and Firefox is running slow, culprit appears to be plugin-container.exe using up CPU. The only plugins I have on "always activate: is "Open H264 Video Codec provided by Cisco Systems, Inc", which does not give the option of asking to activate. Silverlight, Microsoft Office, Google Update and Adobe Acrobat are the only other non-disabled Plugins. Any ideas on what could be causing this?

All Replies (1)

more options