486755 - Firefox hangs when searching a page with a lot of iframes

Status: RESOLVED WORKSFORME

(Toolkit :: Find Toolbar, defect, P5)

Description

[Marius Strumyla]

Attachment: Saved page from ecstuning.com

1. Go to www.ecstuning.com. 
2. Select Volkswagen/Passat/B5/1.8T
3. Type "oil pump" without quotes into a search field on the page and press enter.
4. Search results will be returned. Press "/" and try searching for a word "pick" (a word that does not exist) 
5. Firefox will hang with CPU at 50%.

I tried reproducing this on Windows 2000/Firefox 3.0.8 (old profile) and Windows XP/Firefox 3.0.9pre (new profile) and WindowsXP/Firefox 3.5b4pre (new profile).

If I leave the firefox 3.5b running then it recovers after 10 minutes.

I saved the page from ecstuning.com and can reproduce the hang locally on my machine. Attached is saved page.

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+1]]

I can reproduce it with Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b4pre) Gecko/20090402 Shiretoko/3.5b4pre ID:20090402031241

Would a minimized testcase help in such a case?

Comment 2

[Marius Strumyla]

Attachment: A little simplified testcase

The page contains 824 iframes. If I remove them then quick search does not hang Firefox.

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

In the process of migrating remaining bugs to the new severity system, the severity for this bug cannot be automatically determined. Please retriage this bug using the new severity system.

Comment 4

[Neil Deakin]

Don't see this with the testcase so closing.