After recent update, Conkeror segfaults on Arch Linux, easily reproducible if many tabs are opened.
Branch: Master
OS: Arch Linux
XULRunner version: Mozilla XULRunner 20.0 - 20130428035111
You are running a very old version of xulrunner. Most people use either the latest firefox or the latest
firefox ESR (extended support release).
With Firefox, instead of "xulrunner conkeror/application.ini" it's invoked with "firefox -app
conkeror/application.ini"