Hacking

Preparation

Run: git submodule update --init
Run: npm install

Start the test project

Run: npm run start-playground-plain

Chrome extension

Run: npm run start:chrome
Go to chrome://extensions, check "developer mode", click "Load unpacked extension", and select directory lib/chrome.

Firefox extension

Run: npm run start:firefox
Go to about:debugging, check "Enable add-on debugging", click "Load Temporary Add-on", and select file lib/firefox/manifest.json.