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

how to i find out which add on is preventing firefox 54 from running multithreaded?

  • 1 cavab
  • 2 have this problem
  • 1 view
  • Last reply by Moses

more options

about:support says

Multiprocess Windows 0/1 (Disabled by add-ons)

Without manually disabling each add on and restarting FF is there a way to find out which is the problem?

about:support says Multiprocess Windows 0/1 (Disabled by add-ons) Without manually disabling each add on and restarting FF is there a way to find out which is the problem?

All Replies (1)

more options

Install the Add-on Compatibility Reporter to see which add-on is preventing e10s from enabling.