Cryptocurrency Cyber Protection

Hi all,
I am a developer and was recently exposed to a new problem and wanted to know if the solution to the problem is in demand.
When you want to copy a wallet address from a website to transfer money to it, there are malicious scripts that can change the address we copied from A to B so that B is the attacker's wallet.
I was interested in producing a browser plugin that would solve the problem, do you think people would pay for it and if so how much?
I thought in the $ 2 area.

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