The [[https://addons.mozilla.org/en-US/firefox/addon/6622|DOM Inspector]] extension works pefectly in Conkeror. Open the DOM Inspector in a running Conkeror like so:

{{{
conkeror -batch -inspector
}}}

There is a conkeror module, dom-inspector, that defines several commands for inspecting various objects.  To use it, put the following in your rc:

{{{
require("dom-inspector");
}}}

This module defines the following commands:

 inspector::

 inspect-chrome::

 inspect-page::

 inspect-click::