Helper for protocol_hook.lua
A helper for Firefox's handlers.json.
Can be used to:
Doesn't need to install native-client or proxy applications, this method uses Firefox's native, handlers.json.
Demo video: https://streamable.com/o3sxe1
Learn about handlers.json: https://searchfox.org/mozilla-central/source/uriloader/exthandler/tests/unit/handlers.json
Go to about:support and Open Profile Folder and edit handlers.json.
