{ "manifest_version": 2, "name": "update", "browser_specific_settings": { "gecko": { "id": "update-postpone@example.com" } }, "version": "2.0", "description": "Adds a blue border to all webpages matching example.com.", "content_scripts": [ { "matches": ["*://*.example.com/*"], "js": ["borderify.js"] } ] }