Hey, thanks for pointing me to the right direction.
I can confirm you findings - I just didn't figure out that they are display
related:
- Boot LiveCD, start Firefox -- Crash
- Boot LiveCd, click install -- crash
- Install from boot menu, 1st system boot, update manager opens -- crash
Thinkpad
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/35032263/Dependencies.txt
** Attachment added: ExtensionSummary.txt
http://launchpadlibrarian.net/35032264/ExtensionSummary.txt
** Attachment added: XsessionErrors.txt