Here's a stack trace I created following the instructions from https://wiki.ubuntu.com/MozillaTeam/Bugs#Run_Firefox_in_a_Debugger
I'm still not sure how to reproduce it, it's just trial and error. I just switched to Firefox to other running applications and back again, opened the HUD every now and then, and most of the time there's no crash. And then suddenly it happens. I hope the stack trace can help you. It also seems that the crash can happen when Firefox doesn't have the focus while opening the HUD. ** Attachment added: "gdb.txt" https://bugs.launchpad.net/globalmenu-extension/+bug/1025011/+attachment/3255699/+files/gdb.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1025011 Title: HUD search causes firefox to crash Status in The Mozilla Firefox Browser: Confirmed Status in Unity global menubar extension for Firefox and Thunderbird: Fix Committed Status in “firefox” package in Ubuntu: Fix Released Status in “firefox” source package in Natty: Fix Committed Status in “firefox” source package in Oneiric: Fix Committed Status in “firefox” source package in Precise: Fix Committed Status in “firefox” source package in Quantal: Fix Released Bug description: Searching for any text causes Firefox 13.0.1 to crash on Ubuntu 12.04 ( both 32 & 64 bit **1). Test case: 1. Hit ALT to bring up the HUD search box 2. Type one or more words into the textbox. Expected result: 1. HUD appears ready to search 2. Results appear depending on the search term. What actually happens: 1. HUD appears ready to search 2. Results appear, however firefox crashes shortly after. == Additional information == Running firefox in safe mode makes HUD ignore firefox. In this situation Firefox doesn't crash. **1: I can reproduce this bug on 64 bit Ubuntu. Peter Cawkell is experiencing this bug on 32 bit ( see coments ) To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1025011/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp