1. Go to Settings and select "Network".
2. Then select "Add" to add a new network to the wallet.
3. Now enter the following information.
The id of new chain = 43114
The name of new chain = Avalanche
Chain's currency name = AVAX
Chain's currency symbol = AVAX
Chain's currency decimals = 18
RPC URLs = https://api.avax.network/ext/bc/C/rpc