support: explain *why* it is not good to install new add-ons at https://support.torproject.org/tbb/tbb-14/
In https://support.torproject.org/tbb/tbb-14/ we tell users not to install any new add-ons because 'it can compromise your anonimity'.
But how can it compromise it? Non-technical users don't grasp the concept of browser fingerprinting from our explanation. It would be nice to explain why is it that it can compromise your anonimity.