I'm sorry but since my bug report and because the crashes were really annoying to me, I renamed my firefox profile folder and created a new one. I have kept the old one for a while in the case someone answered to my report but I'm sorry to say that it is today completely deleted. As the use of a new profile resolved the problem I think you can close the report
Thank you -- opening a popup crashes firefox https://launchpad.net/bugs/70052 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs