302604 - 100% CPU Usage

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[ac_phib]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6

when fully loaded, used 100 percent CPU usage

Reproducible: Always

Comment 1

[Max Kanat-Alexander]

You'll have to be more specific -- what exactly did you do to make that happen?
Just load that page?

Comment 2

[Dave Townsend [:mossop]]

I see it using a fair amount of CPU time, but not much above what IE does. This
is most likely the flash animations on the page. Also since they have a pretty
low priority, firefox is only using a lot of CPU time because it is spare to
use, doing another intensive task dropped firefox's CPU usage.

Comment 3

[Ria Klaassen (not reading all bugmail)]

I see also a 90-100% cpu-usage. It is only due to the flash objects. In a
browser without flash it is only 2%. Processor AMD Athlon 2000+.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050728
Firefox/1.0+ ID:2005072822

Comment 4

[Michael (GoodWill)]

This is a flash problem. Block the flash from loading using adblock, flashblock,
or prefbar, and no scaling occurs.

Comment 5

[Jo Hermans]

problem is caused by Flash, which tries to use all available idle CPU. While the Firefox speed is not perfect compared to IE, it's not that much slower either.

Comment 6

[Rudi]

I have a ca 100% reproducable case where the browser uses 100% CPU and it's really anoying. I'm running a win XP on a 1.6ghz Centrino notebook. When I leave the browser open (using a few tabs) and put the notebook in standby/switch user, the next time I re-login (with password) cpu usage jumps up to 100% and it is so bad that I have to kill the task. sometimes it dosn't happen, but it's 100% the case if I leave the computer in standby/hibernation over night.