Chrome Extensions Main Page:
https://developer.chrome.com/extensions
Chrome Extensions Developer Guide:
https://developer.chrome.com/extensions/devguide
Managing events with Background Scripts:
https://developer.chrome.com/extensions/background_pages
Content Scripts:
https://developer.chrome.com/extensions/content_scripts
Internationalization:
https://developer.chrome.com/extensions/i18n
Deployment/Installation:
https://developer.chrome.com/extensions/external_extensions
Native Application Support (“Native Messaging Host”):
https://developer.chrome.com/extensions/nativeMessaging
Tutorial for creating a Chrome extension:
https://developer.chrome.com/extensions/getstarted
Chrome APIs:
https://developer.chrome.com/extensions/api_index
chrome.runtime API: