Wolf480pl is a user on niu.moe. You can follow them or interact with them if you have an account anywhere in the fediverse.
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Google managed to troll the crap out of Mozilla forever... If you want to change internal settings in Firefox, you type... chrome://
@cjd It was there much earlier I believe.
It's the whole concept of "browser chrome", which is the parts of browser UI that are not part of a website, and cannot be controlled by the website.
@Wolf480pl Yup, and google stole it.