[Bug 91245] random (not reproductible) crash SIGSEGV

[Georges]

Public bug reported:

Binary package hint: firefox

today I had a random crash.
firefox 2.0.0.2+0dfsg-0ubuntu0.6.10
This was a longer running firefox, had just done lots of youtube watching, but I had closed all tabs.

I clicked on 2 links in thunderbird (external links opening in firefox)
one of those was youtube.

The first tab displays completely, the second tab (youtube) is loading
in background. Before that one finishes loading: crashed.

I cannot reproduce (random crash).

I have dbg symbols installed, reduced crash report attached

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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random (not reproductible) crash SIGSEGV
https://launchpad.net/bugs/91245