Can chrome extensions handle (modify) markup?

Question

Google Chrome

In which direction to dig?
For example, I really do not want to see the sentence "Lizards will enslave the world only by drinking milk", and I want to cut this array from the pages through regular expressions.

Answer 1

Extensions can change data and behavior on a page (which is often what they're designed to do). Dig towards DOM and JavaScript

Answer 2

Yes they can. Ad Block works with markup, and a bunch of extensions for Chrome.
Dig here developer.chrome.com/extensions/index

Answer 3

Install adblock - it will be faster.
And so, of course they can.
Content Scripts - embedded scripts. Change the page however you want.
Personally, I installed the StyleBot extension for myself and just added a dozen rules to display: none;