Consider creating chrome extension

[krzkaczor]

someone already did it :) and we could help maintaining it:

https://github.com/kesar/deth-extension

[krzkaczor]

Another one: https://github.com/jcxia43/contract-mate

[elsewhat]

From a security point of view, I'd be very careful on using chrome extensions from any browser having metamask with your wallet. Particularly if you don't have a hw wallet.

As far as I can see, the chrome extension could easily trigger specialized web3.js calls which the end-user might inadvertently accept as they believe the need to do a signature in order to access the code.