Metamask Alternative for Bitcoin
Metamask has become the go-to browser extension wallet for the Ethereum blockchain. However, many users may wonder if there is a similar user-friendly app for holding Bitcoin (BTC).
Metamask Flask and BitcoinSnap
Metamask Flask is the developer version of Metamask, which supports an extension interface called Snap. This interface allows developers to build additional features on top of Metamask. The first Snap developed to store Bitcoin can be found at here.

Although this project is still in its early stages, it has the potential to enable users to store both Bitcoin and Ethereum within the same wallet. However, as it remains experimental, it is not yet recommended for everyday users.
Alternative Browser Extensions
Unfortunately, there is no widely-used browser extension for Bitcoin, unlike Ethereum’s Metamask. For those looking to store Bitcoin, whether as a short-term or long-term holder, we recommend using mobile wallets or hardware wallets. These options provide a higher level of security and are designed specifically for storing cryptocurrencies.
In summary, while there is ongoing development for browser extension wallets like Metamask Flask with BitcoinSnap, it is still advisable to use dedicated mobile or hardware wallets for storing Bitcoin. As the crypto ecosystem continues to evolve, we can expect more user-friendly and secure wallet options to emerge.