Google displays a screen asking, "Opera would like to: View your email address, view your basic profile info." Note that Opera does not ask for Google Drive access or Gmail reading permissions—only OpenID Connect (OIDC) scopes (openid, email, profile).
Once the user approves, Google sends a temporary, single-use authorization code back to Opera’s servers, not directly to the browser. opera login with google
This write-up explores the multifaceted role of Google Sign-In within the Opera browser, breaking down its functionality from a user experience (UX) perspective, a technical security standpoint, and a data synchronization strategy. At first glance, the concept might seem redundant. If you open Google Chrome, you are automatically logged into Google. However, Opera is a third-party browser. By allowing users to "Login with Google," Opera is engaging in a strategic partnership of convenience. Google displays a screen asking, "Opera would like