I learned if anything is changed other than cookie and SSL settings inside
about:config it will trigger not allowing accessing or changing any other
Preferences TAB. And give that warning!
It is a hard lesson to learn, they are intent on winning the "Backdoor War".
As I used to spend 5 mins disabling all the Telemetry Google Firefox
telemetry. They contact an unimaginable amount of various "Resources" to
collect data.
If any of it is touched it now acts like a breach of contract browser.
Best way to learn is to use Tor Browser and play with settings as even
reinstalling abrowser does not work. Using a new Tor Browser bundle is much
easier to play with.
You have to go into Synaptic and remove it than go to Package and Force
Version to a lower version of abrowser to re-install for it to clean up the
about:config settings.
