442867 - Visiting europcar.de hangs Firefox on Windows with CPU usage at 50% on a Core2Duo processor

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Marco Zehe (:MarcoZ)]

STR:
1. Start Firefox 3.1a1pre or 3.0 (happens on both).
2. Visit http://www.europcar.de.

Result: Firefox hangs, CPU usage climbs to 50% on a Core2Duo processor. No crash.

Happens with both 3.1a1pre as well as 3.0.
Happens with and without accessibility (my wife reported it to me, and she does not use a11y).

Comment 1

[Marco Zehe (:MarcoZ)]

This is not reproduceable on Linux.

Comment 2

[Dave Miller [:justdave]]

WFM (no hang)

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.1pre) Gecko/2008062904 GranParadiso/3.0.1pre

Comment 3

[Axel Hecht]

I can confirm this on Windows XP.

I'm currently attaching a debugger on it, the funky thing I saw when doing that was that I had both a firefox.exe *and* an explorer.exe claiming to look at that site, I don't have IE open though.

Comment 4

[Ria Klaassen (not reading all bugmail)]

Nothing happening here on http://www.europcar.de on Windows XP with latest trunk. 

Comment 5

[Marco Zehe (:MarcoZ)]

Still happening for me with Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1a1pre) Gecko/2008070103 Minefield/3.1a1pre with Windows XP SP3, IE 7 also installed, all updates otherwise, too.

Comment 6

[Ria Klaassen (not reading all bugmail)]

Yeah, I see it too now on a different Windows computer. It looks like it has something to do with the panel on the right side. I think the contents of that panel is not always the same for I can't reproduce the hang consistently.

Comment 7

[Wayne Mery (:wsmwk)]

I don't see this using Chrome.  Oh, firefox!  :)

WFM Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2b2pre) Gecko/20091101 Namoroka/3.6b2pre (but not core duo)

WFM Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a1pre) Gecko/20091220 Minefield/3.7a1pre (.NET CLR 3.5.30729) on core duo