Firefox is a good example

If you've already read through this and understand what it means and are still worried about your privacy, I would recommend you switch to LibreWolf - it takes all the best practices of hardening Firefox for security and works out of the box. Unfortunately, this means you can't play certain videos, it doesn't auto-update, and some - likely many - websites will break/not work. This is the price to pay for true privacy. If you don't want that, just keep using Firefox.

Sure. Firefox is developed by lovely people.

You aren't happy with your selection of free software and still have the audacity to call the people behind that names? You didn't even read the article did you.

Be a "decent" person yourself and start your own browser. We'll happily judge.

The article is a huge misrepresentation and the author is an idiot.