manifest.json

{
    "name": "__MSG_extensionName__",
    "author": "Talis Education Limited",
    "description":"__MSG_description__",
    "version": "__VERSION__",
    "icons":  {
        "16": "images/icon16.png",
        "48": "images/icon48.png",
        "128": "images/icon128.png",
        "176": "images/icon176.png"
    },
    "background": {
        "page": "background.html",
        "persistent": false
    },
    "permissions": [
        "activeTab", "storage", "https://talis-public.talis.com/*"
    ],
    "options_ui": {
        "page": "options.html",
        "chrome_style": true
    },
    "options_page": "options.html",
    "browser_action": {
        "default_title": "__MSG_browserActionTitle__",
        "default_icon": {
            "16": "images/icon16.png",
            "20": "images/icon20.png",
            "24": "images/icon24.png",
            "25": "images/icon25.png",
            "30": "images/icon30.png",
            "32": "images/icon32.png",
            "40": "images/icon40.png"
          }
    },
    "content_scripts": [
        {
          "matches": ["https://rl.talis.com/*", "https://rl.ca.talis.com/*", "https://life.rl.talis.local/*", "https://*.rl.talis.com/*"],
          "css": ["css/banner.css"]
        }
      ],    
    "default_locale": "en",
    "manifest_version": 2
}