Are you talking about the thing that appears in the corner on some sites, which isn't part of the page but rather the browser? I thought that was only in Chrome, but the setting for that I believe is buried under Privacy and Security > Site Settings > Additional Content Settings > Third-Party Sign-In.
If you're referring to sign in with google buttons, these are usually just static buttons where the pages author's own code redirects you to Google's sign in prompt. The sign in with google button doesn't share any information with google just by being there.
I have a few google accounts and I don't want to have to log in to each one to disable it. Nothing I've done has fixed it. That popup is so annoying. I'm hoping someone has a way to disable it on Chrome on Mac. I'm so tired of seeing that thing pop up constantly.
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https://www.reddit.com/r/uBlockOrigin/wiki/solutions/#wiki_g...