This absolutely needs some kind of a solution!

Storing any master keys in a BROWSER EXTENSION feels like such a bad idea... I understand that this is early days and this is not a simple problem to solve.

Yes.

nostr:nevent1qqsxytqftrrs44j9xzswmmdq8c4eqrya4w7upk5cmylqcvm56h9kzgcprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hsygzwhzp3p445ak2ud4n289dn6084txu9ltkg7a53mt75qk5jup2ad5psgqqqqqqsu635mn

Here’s the current draft of the idea in GitHub, where deeper discussion likely belongs… Needs both dev and UX feedback to clarify capability of protocol to handle the change, and the importance of the change for user security and adoption.

https://github.com/swbratcher/nips/blob/master/NSUB.md