Apple's co-founder, Woz*, tapes his front-facing laptop camera and calls out the thing that frightens him the most -- smartphones -- 24/7/365 mobile surveillance devices that practically no sane owner would consider ever turning off even for a few minutes. Checked hundreds upon hundreds times a day. :)
Oh, so back to web browser extensions (I'm using these on Mozilla.org Firefox). uBlock and...
uMatrix
CanvasBlocker
Decentraleyes
Disconnect
HTTPS Everywhere
Privacy Badger
Smart Referer
Plus I have some DuckDuckGo and Bitdefender privacy tools. We passed the entry point for Orwell's 1984 many years ago. At least as far back as the major telecoms helping the NSA spy freely on any and all citizens in this country. But, heck, the internet, and now especially smartphones....the tracking possibilities are endless.
Future dystopian world, here we come! :)
** Edit -- Noticed via the daily b-day post that Steve Wozniak's birthday is 8/11. How funny!