How can I block the “Sign in with Google” prompt on websites?

1 min read Original article ↗

On many websites that require login, those annoying Google login prompts appear:

"Sign in to unlock deals and discounts!" popup

There are several tutorials on the Internet on how to avoid this, for example, this one on How-To Geek, which suggest disabling an option in the Google account. However, this doesn't work, since mine is not enabled and never was:

"Allow Google to offer a faster way to sign in with your Google Account on supported third-party sites" (in German)

Note, that this only happens with Firefox (110.0.1 (64-bit), AdBlocker ultimate v 3.7.21 installed); if I use the Brave browser (version 1.49.120 Chromium: 111.0.5563.64 (Official Build) (64-bit)), which is known to block ads by default, they are not displayed. I'm on Ubuntu 22.04.2 LTS (Jammy Jellyfish) with Linux kernel 5.19.0-35-generic x86_64.