A supported way would imply guarantees of compatibility and stability. These sort of perfs in user.js or about:config are clearly labeled as not having those g

A supported way would imply guarantees of compatibility and stability. These sort of perfs in user.js or about:config are clearly labeled as not having those guarantees and therefore "unsupported". As someone who extensively customizes the look, feel and way that firefox works I think this makes sense. I of course would like mozilla to make a lot more options "officially" supported, especially turning off anything that contacts a remote server without explicitly wanted.