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Absolutely, right now, it will work with Chrome, Brave and Netbox (or any other Google clone).

Will you make this extension opensource?

For the time being, we are debating that topic, as the code would be used by "other" chains out there.

Hence why we chose to use Keychain, as that is opensource and a trusted means of storing keys and doing financial transactions with Hive.

We are living in very interesting times and it is clear that some will not stop at anything, theft of funds for example.
Let alone theft of proprietary code.