I've reproduced this with the same scenario (i mean firefox-3.0 with flashblock
and downloadhelper extensions).
However, by disabling the downloadhelper extension, everything works fine.
** Changed in: firefox-3.0 (Ubuntu)
Status: New => Invalid
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Break.com crashes firefox
https://bugs.
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/15324566/Dependencies.txt
** Attachment added: "ExtensionSummary.txt"
http://launchpadlibrarian.net/15324567/ExtensionSummary.txt
** Attachment added: "profiles.ini.txt"
http://launchpadlibrarian.net/15324568/profiles