Source Manifest.json { "background": { "scripts": ["/js/background.js"] }, "default_locale": "en", "description": "__MSG_extDescription__", "homepage_url": "http://dmitrylebedev.io/closy", "icons": { "16": "img/icon16.png", "32": "img/icon32.png", "48": "img/icon48.png", "128": "img/icon128.png" }, "manifest_version": 2, "name": "Tabs Closer", "browser_action": { "default_icon": "img/icon48.png", "default_title": "__MSG_extIconDescription__" }, "permissions": ["tabs" ], "update_url": "https://clients2.google.com/service/update2/crx", "version": "2.0.0"} Read more