Hi all! I wanted more control over message encryption across different sites I use, so I built Coconut Shell, currently a Firefox extension, using OpenPGP.js to handle encryption locally in the browser.
I released v1.0.1, still in Proof-Of-Concept, so I hope to get some feedback on how it works and features you think would be helpful.
Try here:
https://addons.mozilla.org/en-US/firefox/addon/coconut-shell...