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.

Avatar for Username

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

taking whole processor to run

  • 1 resposta
  • 1 has this problem
  • 1 view
  • Last reply by Shadow110

built4ucomputers
built4ucomputers
more options

I have a 3.8GHz quad core processor with 16Gb of memory, I use Windows 7 Pro. Firefox is sometimes taking 100% of my processor to run and it is opening multiple copies with I go in my task manager. I have gone in to Options -> Performance and unchecked Use Multiple performance settings. It is still running slow and using quite a bit of the processor at times. I uninstalled Firefox and put it back on and nothing has changed.

I have a 3.8GHz quad core processor with 16Gb of memory, I use Windows 7 Pro. Firefox is sometimes taking 100% of my processor to run and it is opening multiple copies with I go in my task manager. I have gone in to Options -> Performance and unchecked Use Multiple performance settings. It is still running slow and using quite a bit of the processor at times. I uninstalled Firefox and put it back on and nothing has changed.

Chosen solution

HI, please Copy/Paste about:preferences#privacy into the Address Bar then Enter. Go down to Heading Permissions and at the bottom that heading please make sure there is a Check Mark in the box for Prevent accessibility services from accessing your browser.

Then please go up to General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on.

Please install https://www.hitmanpro.com/ as 1x only use and check to see if you have anything that may cause this like bitcoin miners or other malware.

Please let us know if this solved your issue or if need further assistance.

Ler a resposta no contexto 👍 0

All Replies (1)

Shadow110
Shadow110
more options

Chosen Solution

HI, please Copy/Paste about:preferences#privacy into the Address Bar then Enter. Go down to Heading Permissions and at the bottom that heading please make sure there is a Check Mark in the box for Prevent accessibility services from accessing your browser.

Then please go up to General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on.

Please install https://www.hitmanpro.com/ as 1x only use and check to see if you have anything that may cause this like bitcoin miners or other malware.

Please let us know if this solved your issue or if need further assistance.