Reading the list of all standard XUL files contained by Firefox ( Firefox Chrome URLs ) you will find some URLs with this description : Crashes browser when opened
In fact, if you copy-paste this URL in your Firefox address bar you will crash it (no problem..just restart it) :
chrome://pippki/content/editcacert.xul
This also happens with these 2 URLs:
chrome://pippki/content/editemailcert.xul
chrome://pippki/content/editsslcert.xul
