5 y ago
There was a time, in the not-too distant past, when the Internet was mostly about sharing educational information.
Sadly, the Internet is now full of companies who want to use it as a vehicle for advertising and who are obsessed with building up a dossier on as many people as possible, to exploit for financial gain. Your privacy means nothing to these companies; they will collect as much information about you as possible, with no regard for your wishes.
It's some trouble to set all this up, and inconvenient at times. But unfortunately it's a jungle out there, and the default setup of browsers leaves you like a naked person in a mosquito-infested swamp.