How to "break" firefox?

Question

Browsers

The goal is to reduce firefox's RAM consumption by corrupting files. Displaying site content to the user is unnecessary, but the site should see that the user has connected via firerefox, with support for Javascript, Cookies, HTML5, Flash (optional).
What files and how to damage - change?
an example of one of these recommendations: create a new text file in the browser folder and rename it to msacm32.dll, no sound will be produced.

Answer 1

firefox headless selenium