Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

high cpu

  • 2 replies
  • 1 has this problem
  • 6 views
  • Last reply by bikear

more options

Hello

Situation : I use RHEL6 Update 3 64-Bit with Firefox 38.0.5 64-Bit on a Dell Workstation T3500. Unfortunately firefox is consuming a lot of CPU, typically around 80%. To check if there are any plugins problems I did create a new empty user profile with "firefox -profilemanager". I also did uncheck the "hardware acceleration" ... but the CPU usage remains unaccepable high.

Do you have any advice how I can fix this?

Regards Peter

Hello Situation : I use RHEL6 Update 3 64-Bit with Firefox 38.0.5 64-Bit on a Dell Workstation T3500. Unfortunately firefox is consuming a lot of CPU, typically around 80%. To check if there are any plugins problems I did create a new empty user profile with "firefox -profilemanager". I also did uncheck the "hardware acceleration" ... but the CPU usage remains unaccepable high. Do you have any advice how I can fix this? Regards Peter

All Replies (2)

more options

Hello Peter First check if your FireFox is up-to-date by going to menu>help>about Firefox. update it if it is outdated. For your current problem check this ease article https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

more options

Hello Muhammad

My firefox version is uptodate (38.0.5).

Articel .. Disabling CPU consuming extensions and themes: - I did start in safe-mode .. not better Hiding intrusive content - It is the google.ch home page Plugins - I did create a new empty profile with -profilemanager ... not better - I did unactivate/disabling all plugins ... not better - Did also enable/disable hardware acceleration ... no better ...

Firefox still consumes 80% CPU :-(

Regards Peter