303832 - In both web addresses firefox crashes and doesn't respond

Status: RESOLVED DUPLICATE of bug 285275

(Firefox :: General, defect)

Description

[rharran]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.10) Gecko/20050716 Firefox/1.0.6

I just downloaded Firefox for the first time. I need certain sites for my work.
I am from Israel and both these web sites are in Hebrew. www.maariv.co.il and
www.ynet.co.il. I just purchased an apple powerbook and I would prefer using
Firefox and not Safari. When I go to the web sites  after I try to navigate and
enter certain articles, the application freeses and I have to close firefox.
With Safari it doens't happen. 
I know nothing about computers but this is bug is preventing me from surfing
with firefox.
I hope you can help me

Reproducible: Always

Steps to Reproduce:
1.go to each web site www.maariv.co.il   www.ynet.co.il
2.start scrolling


Actual Results:  
the page freezes and I have to force quit the program

Comment 1

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050808
Firefox/1.0+ ID:2005080801. 

Both sites WFM (no crash) using WinXP.

Comment 2

[rharran]

I received a responce to my emial and I was told that this problem doesn't
happen with winXP but I have a macintosh and not winXP. How can I read the sites
in a mac

Comment 3

[Itay C]

I can confirm that this occurs on my system as well, and is the major reason I
cannot use Firefox/Camino on my Mac. Simply access any of the following:

www.ynet.co.il
www.tapuz.co.il
www.maariv.co.il

Watch the CPU share for the browser pass the 50% mark and stay there. See the
spinning beachball of death. You may be able to recover, but it will be slow and
painful.

My system is Mac OS 10.4.2, Mozilla Firefox or Camino (doesn't really matter
exactly which version, any will do really, but for the record Firefox is the 1.5
beta 1 and Camino is 1.0a1).

This bug does NOT occur on Windows, it's a Mac only issue.

Comment 4

[Yoav Nir]

Attachment: Sample HTML file that shows the bug

The problem is not unique to Hebrew or Israeli sites, but may be related to the
way pages are coded on these sites.

This file (no Hebrew) demonstrates the problem. On both Windows and Mac the CPU
load goes to the high 90s because of this single Firefox thread.
The difference is that Windows remains responsive but the Mac becomes
lethargic. Hate to admin it, but maybe resource management is better on
Windows.

Neither IE on Windows nor Safari on the Mac use so much CPU to render this
page.

Comment 5

[Fabio Russo]

Both the reported websites and the testcase make firefox use 80% of my 1.5ghz G4.
Notice that the websites all have many flash animations, so this could be
related to bug 285275.

Comment 6

[Yoav Nir]

Looks to me like there's two problems here.

1. Dynamic HTML like in the sample file takes way too much CPU.  This is not specific to Mac, but also 
happens on Windows. This is bug 142994

2. Multiple flash thingies cause Firefox (but not Safari) to hang.  This is indeed bug 285275. 

I think this should be marked as a duplicate of one of them.

Comment 7

[Fabio Russo]

ok - marking as dup of bug 285275 as it seems the problem reported originally.

*** This bug has been marked as a duplicate of 285275 ***