Currently, users can't perform any actions with Binance Bridge unless their wallets are connected. This widget is meant to be used client-side to improve the flow of connecting wallets.
You should see a connection request from Binance Bridge. Click on the Connect button to accept it.
Supported wallet name in desktop browser: MetaMask, Binance Wallet.
Supported wallet name in mobile app browser:
This URL support both MathWallet and MetaMask. Open the link in the wallet browser.
Note: please make sure the wallet is connected to Binance Smart Chain mainnet.