249823 - Freezes Firefox eats CPU+RAM

Status: VERIFIED DUPLICATE of bug 103649

(Toolkit :: Form Manager, defect)

Description

[Brent Garber]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040626 Powerworm/0.9.1 (Firefox/0.9.1)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040626 Firefox/0.9.1

When loading this page, it was originally loading from disk, and the following
symtpoms occured:

Firefox maxed out CPU
Firefox proceeded to eat RAM untill killed

Reproducible: Always
Steps to Reproduce:
1. Goto URL
2. Wait
3. Watch resource usage

Actual Results:  
Firefox proceeded to eat all CPU and available RAM

Expected Results:  
Page loads.

Comment 1

[shadytrees]

It's the massive amounts of iframes that's causing it. Attaching testcase.

Comment 2

[shadytrees]

Attachment: Lots of iframes cause Firefox to eat up CPU

Warning: this testcase will render Firefox useless for a few moments. It may
hang it, too.

Comment 3

[Jonas Nordlund]

I can also confirm this bug on a 1.0 branch build:
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040811
Firefox/0.9.1+

However, this looks like a duplicate of bug 103649.

Comment 4

[Brent Garber]

*** This bug has been marked as a duplicate of 103649 ***