Rabby is an EVM-focused wallet built around clear network awareness. Your address is a single 0x address that works across every EVM chain — what changes is which chain you're viewing a balance on.

Steps

Open Rabby and unlock it.
Your 0x address is shown at the top; click it to copy. (Or use Receive and select the chain.)
Verify the first and last characters before using it.

Important notes

The same 0x address is valid on Ethereum, Arbitrum, Optimism, Base, Polygon, and other EVM chains — but a balance only appears on the chain the funds are actually on. Rabby is good at showing you which chain holds what.
If a submitted address reads zero, check whether your funds are on a different EVM chain than the one being looked at (see Why your wallet shows a zero balance).
Rabby can import multiple addresses/accounts; confirm you're copying the one that holds your funds.
Never share your recovery phrase or private key. No verification asks for it.

For current steps, see Rabby's official support documentation.