Auth error: A network error (such as timeout, interrupted connection or unreachable host) has occurred.

Hi, I have searched everywhere trying to resolve this error without success. I'm using Firebase in a chrome extension. I'm using signInWithPopup(provider) to sign in my users using their google account. It works for some of my users without any issues but also fails for thousands of users with the aforementioned error. In my development environment the error doesn't occur.
I tried adding my custom auth domain (auth.mysite.com) to the content security policy:
`"content_security_policy":"script-src 'self' https://www.gstatic.com/ https://*.firebaseio.com https://www.googleapis.com https://auth.mysite.com; object-src 'self'" `
, but it didn't change anything.
I found online that it's suggested to remove `` tag, in case your action button is inside a `` but it's not the case for me, my action button looks like this:
`

Any help is much appreciated.