Is there a browser application that changes the display of other people's sites?

Question

css

Greetings. I am looking for a browser application that will allow me to save my own settings for displaying a third-party site. Let's say I don't like some section on someone else's site - I delete it, or set other settings for CSS and JavaScript ... And in the future it will look the way I want. This allows you to implement Firebug, but the result is temporary.

Answer 1

style

Answer 2

Stylish + Grease Monkey.
Stylish creates custom styles and GreaseMonkey creates custom scripts. You can use Jquery and do whatever you want with the site.