1. with conkeror not running, start profile manager
 2. create a profile
 3. exit (without starting conkeror)

    $ xulrunner-6.0 ./application.ini -no-remote -ProfileManager
    Error initializing.
    NS_ERROR_XPC_GS_RETURNED_FAILURE: Component returned failure code: 0x80570016
(NS_ERROR_XPC_GS_RETURNED_FAILURE) [nsIJSCID.getService]
    null()@chrome://conkeror/content/services.js:22
    load1()@file:///mydoc/projects/conkeror/components/application.js:110
    null()@file:///mydoc/projects/conkeror/components/application.js:185
    null()@file:///mydoc/projects/conkeror/components/application.js:286
    null()@chrome://conkeror/content/conkeror.js:20
    load1()@file:///mydoc/projects/conkeror/components/application.js:110
    null()@file:///mydoc/projects/conkeror/components/application.js:185
    null()@file:///mydoc/projects/conkeror/components/application.js:286
    application()@file:///mydoc/projects/conkeror/components/application.js:43
    null()@resource://gre/modules/XPCOMUtils.jsm:256
    content_policy()@file:///mydoc/projects/conkeror/components/content-policy.js:15
    null()@file:///mydoc/projects/conkeror/components/content-policy.js:37
    null()@null:0
    Console error: [JavaScript Error: "get_caller_source_code_reference is not defined" {file:
"chrome://conkeror/content/hook.js" line: 119}]
      Category: XPConnect JavaScript

The content-policy component is getting loaded before the application
component, and somehow, when it calls add_hook, source-code.js still has
not been loaded.  Could asynchronous loading be responsible?

possible solution:

Don't auto-load the content-policy component, but have the content-policy
module load it.

Implemented solution described in msg950.