manifest.json

{
    "name": "__MSG_extName__",
    "version": "1.0",
    "description": "__MSG_extDescription__",
    "permissions": ["activeTab","storage","declarativeContent"],
    "options_page": "options.html",
    "default_locale": "en",
    "background": {
        "scripts": ["background.js"],
        "persistent": false
    },
    "page_action": {
        "default_popup": "popup.html",
        "default_icon": {
            "16": "images/get_started16.png",
            "32": "images/get_started32.png",
            "48": "images/get_started48.png",
            "128": "images/get_started128.png"
        }
    },
    "content_scripts": [
        {
            "matches": [
                "https://duckduckgo.com/?q=*",
                "https://www.bing.com/search?q=*",
                "https://www.google.com/search?*",
                "https://*.search.yahoo.com/search*",
                "https://*.ask.com/web?q*",
                "https://yandex.ru/search/?*",
                "https://www.searchencrypt.com/*",
                "https://*.dogpile.com/*"
            ],
            "all_frames": true,
            "run_at": "document_idle",
            "js": ["content.js"],
            "css": ["content.css"]
        },
        {
            "matches": ["https://*.search.yahoo.com/search*"],
            "css": ["site_specific_css/yahoo.css"]
        },
        {
            "matches": ["https://www.bing.com/search?q=*"],
            "css": ["site_specific_css/bing.css"]
        },
        {
            "matches": ["https://*.ask.com/web?q*"],
            "css": ["site_specific_css/ask.css"]
        },
        {
            "matches": ["https://yandex.ru/search/?*"],
            "css": ["site_specific_css/yandex.css"]
        }
    ],
    "icons": {
        "16": "images/get_started16.png",
        "32": "images/get_started32.png",
        "48": "images/get_started48.png",
        "128": "images/get_started128.png"
    },
    "manifest_version": 2
}