Blocking "Sign in with Google"
It seems like more and more sites have included Google’s single-sign-in system, which has a really annoying prompt. It takes up a surprising amount of real estate and needs to be dismissed with a click every time you visit a site, and so many sites now include it. I do not wish to sign in with Google. In fact, I use very few of Google’s services these days, and do not sign in with the browser profile I use for general web browsing.
After a bit of searching, I found this handy post on StackExchange. It suggests a simple filter for uBlock. Since I was already using uBlock, I decided to give it a try.
In the uBlock settings, go to the My filters tab, and add this line:
accounts.google.com/gsi/client$3p
Apply changes and go back to your browsing. It seems to work for me so far, but I have a sneaking suspicion this will be a bit of an arms race over time.