Comment 7 for bug 1280892

James Lownie, regarding https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1280892/comments/4 :
>"The crash happened again and this time Apport captured the crash data, but it didn't finish the process, it didn't open up the web browser to create a new bug. So I have a file /var/crash/_usr_bin_Xorg.0.crash..."

The reason when you ran in a terminal:
ubuntu-bug /var/crash/_usr_bin_Xorg.0.crash

that when you clicked yes to report this it didn't open a new browser window is because of a known issue you would need to address as outlined in https://help.ubuntu.com/community/ReportingBugs#Reporting_an_application_crash .