To store cryptocurrencies belonging to multiple blockchains, you need to use a wallet that allows you to do so. Hence, the first thing that you need to do is find one such wallet using which you can avoid the need of usage of another crypto wallet. One such wallet is the Trust Wallet which supports crypto from more than 70 blockchains and gives you the option to access the decentralized web. So, you must install the Trust extension if you are planning to use one of these features of the wallet.