See Title. Can I please authenticate in another way? website login or something.
Here on Vivaldi website / Forum:
Hadden89 30 jul. 2017 16:38
@ThePineappleGuy I suspect every extension which call that url won't work as it's trying to find a google API. The chrome:// vivaldi:// change in urlbar it's cosmetic - they actually lead to different places when directly used. chrome://chrome/chrome-signin/?access_point=6&reason=0 actually goes to an internal page, but the API don't exist in vivaldi. If the extension only need a google account, maybe the web login could work, otherwise it won't.