312188 - CPU Usage is Very High after upgrading to 1.0.7

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Travis]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7

I just installed the 1.0.7 version and the CPU usage is incredibly ridiculous. I
uninstalled all extensions to narrow it down to firefox, and each time I visit a
page that isn't cached, the CPU spikes to 100% and my system becomes really
slow. This wasn't a problem with the previous version of firefix that I had. 

Reproducible: Always

Steps to Reproduce:
1. Visit uncached pages
2. 
3.

Actual Results:  
CPU usage spikes to 100% and firefix becomes unresponsive.

Expected Results:  
CPU usage stays at normal level and page loads smoothly.

No errors were reported. I want my old firefox version back!

Comment 1

[Nickolay_Ponomarev]

Does this also happen in 1.5beta? Does this happen with default settings too
(tried a new Firefox profile?) What pages this happens on?

Comment 2

[Travis]

Hi,

Yes. I downloaded the recent 1.5 b2 version and had this problem. I'll attach a
screenshot of perfmon as I started up firefox and visited:

http://www.google.com/ig
http://www.cnnsi.com
http://www.cnn.com

I've also observed this with other generic sites like yahoo.com and microsoft.com. 

Comment 3

[Travis]

Attachment: Screenshot of perfmon during browsing with firefox 1.5b2

Comment 4

[William Bumgarner [:zsinj]]

Please use a recent version of Firefox, available at
http://www.mozilla.com/en-US/firefox/, and report back with your results in
relation to this bug report.

If this problem can be reproduced, please reopen this bug report. Due to age/lack of response, closing. (bug cleaning)