[Bug 240786] [NEW] Firefox 3 crashes during Gmail tab close

[reem.bs]

Public bug reported:

Binary package hint: firefox-3.0

Firefox 3 crashes a lot.
Most often when using GMail, during tab close. Other pages crashed too, again most often during tab close (e.g. facebook picture pages), but much more randomly than the Gmail inbox page.
It's been happening to me since 3.0b5. Recently I've tried out different versions, including the 3.1alpha to see weather the bug was fixed. I tried all of them after deleting the .mozilla dir every time. I also don't have any add-ons installed, and I removed the flash plugin and libflashsupport. In each version I also tried the safe mode.
In each version I tried the following steps in order to crash:
- open firefox
- go to gmail.com and log in
- open another tab
- close the gmail tab

These are the versions that I found were effected:

- Hardy  (3.0~b5+nobinonly-0ubuntu3)
- Hardy-proposed  (3.0+nobinonly-0ubuntu0.8.04.1)
- 3.0+nobinonly-0ubuntu3~fta1~hardy (ppa.launchpad.net)

The only version that was not effected, and did not crash after those
steps was 3.1~a1~hg20080614r15356+nobinonly-0ubuntu1~fta1~hardy
(ppa.launchpad.net).

My System:
	Dell Inspiron 1420 (Intel(R) Core(TM)2 Duo CPU T5450  @ 1.66GHz)
	2GB RAM
	Ubuntu 8.04 (hardy)
	Kernel: 2.6.24-19-generic
	Gnome: 2.22.2
	Compiz(if it matters): 0.7.4

I'm attaching gdb output for the 3.0+nobinonly-0ubuntu0.8.04.1 version crash. I don't know if I did a good job at loading the symbols. If any more are needed I will gladly repeat the process.
I have another desktop computer running hardy with the 3.0b5 version, and it runs fine.

Notes:
- The bug seems to effect only the newer version of Gmail, older UI closes tabs fine.
- I only tried versions I could find in repositories. If I were to compile it my self, could that make the difference?

** Affects: firefox-3.0 (Ubuntu)
     Importance: Undecided
         Status: New

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Firefox 3 crashes during Gmail tab close
https://bugs.launchpad.net/bugs/240786
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