One wallet for few brave browsers

I have the latest brave version (Wersja 0.69.132 Chromium: 77.0.3865.90 (Oficjalna wersja) (64-bitowa)). I have Brave installed on Laptop, home computer and phone (Android).
My questions is- how to configure to have one wallet for all these browsers? I’ve already created an Uphold wallet.
My second questions is - I would like to earn from the ads, it is posslible for Poland if I use Nighlty - can I also have this Nihgtly version connected to one wallet - Uphold or any other?
May I be instructed how to do it?
Your support is much appreciated.

Wallet sync is not available yet.

AFAIK, it’s possible if you use Nightly version.