--- a/browser/modules/ContentCrashHandlers.jsm
+++ b/browser/modules/ContentCrashHandlers.jsm
@@ -145,16 +145,18 @@ this.TabCrashHandler = {
         }
 
         // check for environment affecting crash reporting
         let env = Cc["@mozilla.org/process/environment;1"]
                     .getService(Ci.nsIEnvironment);
         let shutdown = env.exists("MOZ_CRASHREPORTER_SHUTDOWN");
 
         if (shutdown) {
+          dump("A content process crashed and MOZ_CRASHREPORTER_SHUTDOWN is " +
+               "set, shutting down\n");
           Services.startup.quit(Ci.nsIAppStartup.eForceQuit);
         }
 
         break;
       }
       case "oop-frameloader-crashed": {
         aSubject.QueryInterface(Ci.nsIFrameLoader);