One question I get a lot is how to associate a preference option that you see in the Firefox preferences with the name of a preference to set or lock.

To make getting that information easier, I've made a very simple extension called Pref Helper that when installed highlights any item that has a corresponding preference in blue and shows that preference when you right click on the item. This should make it easy to find the preference name you are looking for.

Then you can set or lock it with the CCK2.

You can download it here.

https://mike.kaply.com/2015/11/11/identifying-preferences-names-in-firefox/