* <tt>browser.contentblocking.enabled</tt>: master switch for all content blocking features (includes tracking protection, but excludes tracking annotations)
* <tt>browser.safebrowsing.debug</tt>: show debugging info from the JavaScript list update code on the command line as long as browser.dom.window.dump.enabled is also enabled
* <tt>browser.safebrowsing.provider.mozilla.lists</tt>: list of tables coming from the Mozilla shavar service
* <tt>browser.safebrowsing.provider.mozilla.updateURL</tt>: server endpoint for downloading list updates