Closed Bug 585400 Opened 14 years ago Closed 7 years ago

High CPU usage on a static CSS site with Firefox 4.0b3pre

Categories

(Firefox :: General, defect)

Product:
Firefox
Component:
General
Platform:
x86_64
Linux
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: astralstorm, Unassigned)

Details

(Whiteboard: [closeme 2017-08-15]) 

I'm getting consistent high CPU usage (full 1 core of Turion X2 Ultra) with the following site:
http://www.csszengarden.com/?cssfile=/202/202.css&page=1

The bug only happens when the page is showing.

The page is completely static, seems to me no animations are in it.
This high CPU usage makes the browser respond sluggishly, with about 0.5s-1s delays on actions.

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b3pre) Gecko/20100808 Firefox/4.0b3pre
Hg changeset of Firefox: ab7618bb5c48
Hg changeset of Xulrunner: 0482cbddd7e1
Not seeing excessive cpu usage from Mozilla's build - Mozilla/5.0 (X11; Linux x86_64; rv:2.0b4pre) Gecko/20100808 Minefield/4.0b4pre
Radosław, do you still see this issue?
Flags: needinfo?(astralstorm)
Whiteboard: [closeme 2017-08-15]
Not anymore in new nightlies or 53.0, they're fine.
Status: NEW → RESOLVED
Closed: 7 years ago
Flags: needinfo?(astralstorm)
Resolution: --- → WORKSFORME
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