How to import javascript code into developer tools in browser? One time forever

I used to hide end screen cards in Youtube with code in Console, but it works until reload or close tab. So, how to import javascript code one time for all times? Thanks.

https://stackoverflow.com/questions/66792424/how-to-import-javascript-code-into-developer-tools-in-browser-one-time-forever March 25, 2021 at 10:56AM