Mozilla Support में खोजें

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

Firefox using 200% CPU on 8-core mac, with NO tabs open

  • 1 प्रत्युत्तर दें
  • 1 यह समस्या है
  • 1 view
  • के द्वारा अंतिम प्रतियुतर india42

more options

Early 2011 MBP 17", macOS 10.12.1, Firefox 50.0.2

When I open Firefox, the %CPU in Activity Monitor jumps to over 200% immediately (8-core CPU) and jumps higher if I open any tabs. The core temperatures, as reported by iStat Menus, are all over 90° C, even with the fans set to max RPM.

I've shutdown every plug-in, add-on and extension, but the behaviour does not change.

Why is Firefox using so much CPU resource when it is essentially idling? How can I stop this?

Early 2011 MBP 17", macOS 10.12.1, Firefox 50.0.2 When I open Firefox, the %CPU in Activity Monitor jumps to over 200% immediately (8-core CPU) and jumps higher if I open any tabs. The core temperatures, as reported by iStat Menus, are all over 90° C, even with the fans set to max RPM. I've shutdown every plug-in, add-on and extension, but the behaviour does not change. Why is Firefox using so much CPU resource when it is essentially idling? How can I stop this?

All Replies (1)

more options

I forgot to mention. There are a lot of threads as well.