Selenium: How to Inject/execute a Javascript in to a Page before loading/executing any other scripts of the page?

Question

I\'m using selenium python webdriver in order to browse some pages. I want to inject a javascript code in to a pages before any other Javascript codes get loaded and execut

Answer 1

If you want to inject something into the html of a page before it gets parsed and executed by the browser I would suggest that you use a proxy such as Mitmproxy.