629713 - To high CPU Load

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Andreas Fritz]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_6; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.237 Safari/534.10
Build Identifier: 3.6.13

After i work many Hours with Firefox, the CPU Load is very very high, over 100% nothing go more, i must wait and Close the Firefox, for a better CPU Load, This Problem is on Mac & PC... and should fixed.

Screenshot on my MAC: http://www.isphttp.de/ebay/firefox_high_load.tiff

Reproducible: Always

Steps to Reproduce:
1. Open 3 to 10 Tabs
2. Surf i little bit 1 - 2h
3. CPU Load is over 40% - 100%
Actual Results:  
Very High CPU Load

Comment 1

[Matthias Versen [:Matti]]

Please try http://support.mozilla.com/en-US/kb/Safe+Mode

Comment 2

[Kearney Taaffe]

Attachment: A sample of the Firefox process

I can confirm this is happening with Firefox is not run in Safe Mode.

After about 3 hours, Firefox began to use 90% of CPU. Firefox became unresponsive and eventually I could not click on the menu items. Firefox had to be exited forcefully.

MY SETUP
  BUILD IDENITIFIER: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b11) 
                     Gecko/20100101 Firefox/4.0b11
  COMPUTER OS      : Mac OS 10.6.6
  HARDWARE PLATFORM: x86
  TIME OF ERROR    : Roughly Feb 22 2011 15-27-00 CST

STEPS TO REPRODUCE
 1. Open 4 tabs
 2. Surf, do work, normally.
 3. After about 3 hours, Firefox began to become unresponsive. Upon opening 
    "Activity Monitor" it was observed that Firefox was using 90%-99% of CPU

NOTES
 Attached is a sample taken by Activity Monitor showing where Firefox was spending the most time.

If logs would be more helpful, I'll be happy to attach some logs

Comment 3

[Wayne Mery (:wsmwk)]

Reporter, do you still see this problem when using a current version in safe mode?   http://support.mozilla.org/kb/troubleshoot-firefox-issues-using-safe-mode

If you no longer see the problem, please set status to resolved and resolution to WORKSFORME.

If you do see the problem, please update comments on how to reproduce.

Comment 4

[Phoenix]

Resolved per whiteboard