521446 - Javascript-heavy webpages hang the browser when under load.

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Dan Dart]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.9.0.14) Gecko/2009090216 Ubuntu/9.04 (jaunty) Firefox/3.0.14
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.2) Gecko/20090803 Ubuntu/9.04 (jaunty) Firefox/3.5.2

This (badly-optimised) web page shows that if you press the "Left" or "Right" buttons enough, eventually the browser will freeze, especially if there are many images (click "One more").

Reproducible: Always

Steps to Reproduce:
1. Go to the website
2. Click "One more" a few times
3. Click "Right" a few times.
4. The browser eventually freezes.
Actual Results:  
The browser will freeze. In FF 3.0.14 it will come back to life eventually.

Expected Results:  
The browser should not freeze. Even if the page was badly coded.

This may be due to a memory leak?
Plugins installed: Flash, Java, mplayer plugin.

Comment 1

[Ria Klaassen (not reading all bugmail)]

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.4pre) Gecko/20091007 Shiretoko/3.5.4pre

No freeze on Windows, although the performance isn't great with Firefox.

Comment 2

[Tyler Downer [He/Him]]

Reporter, are you still seeing this issue with Firefox 3.6.13 or later in safe mode or a fresh profile? If not, please close. These links can help you in your testing.
http://support.mozilla.com/kb/Safe+Mode
http://support.mozilla.com/kb/Managing+profiles

Comment 3

[Tyler Downer [He/Him]]

This bug has had the CLOSEME tag for several weeks and the date in the tag is
far gone. If the reporter can still see this issue, Please retest with Firefox
3.6.x or later and a new profile
(http://support.mozilla.com/kb/Managing+profiles). Then please remove the
closeme tag in the whiteboard, mark the bug against the proper version and
comment on the bug.