The technical stuff - https://github.com/Eloston/ungoogled-chromium/blob/master/do...
(I wish someone would do this with Firefox too. I am tired of all the useless or meaningless services being added to Firefox - from pocket to monitor to even ads now.)
https://github.com/arkenfox/user.js
plus
rm /usr/lib/firefox/browser/features/*.xpi
takes care of pretty much all of the firefox bloat for me