How to remove website logo in the browser tab?

For those who're down-voting, this is a REAL requirement, before down-voting, please think can you achieve this? If not, please give an answer for why it cannot be achieved, thank you.

I know this question is weird, but it's really required and I cannot access the website's source code, all I can do is to use custom css/js etc. in the browser extension to achieve this. For instance, remove this logo:

https://stackoverflow.com/questions/65820130/how-to-remove-website-logo-in-the-browser-tab January 21, 2021 at 09:52AM