Manifest.json

{
    "name": "my search",
    "default_locale": "en",
    "homepage_url": "https://www.example.org",
    "icons": {
        "16": "img/icon_16.png",
        "48": "img/icon_48.png",
        "128": "img/icon_128.png"
    },
    "manifest_version": 2,
    "web_accessible_resources": [
        "img/icon_16.png",
        "img/icon_76.png"
    ],
    "browser_action": {
        "default_title": "__MSG_browser_action_hover__",
        "default_icon": "img/icon_19.png",
        "browser_style": false
    },
    "background": {
        "scripts": [
            "js/background.js"
        ],
        "persistent": true
    },
    "content_scripts": [
        {
            "matches": ["*://*.example.org/*"],
            "js": ["js/funnel.js"],
            "run_at": "document_start"
        }
    ],
    "chrome_settings_overrides": {
        "search_provider": {
            "name": "my search",
            "keyword": "search",
            "search_url": "https://www.example.org/?q={searchTerms}&addon=firefox&addonversion=4.0.3",
            "favicon_url": "http://www.example.org/favicon.ico",
            "encoding": "UTF-8",
            "is_default": true
        }
    },

    "description": "__MSG_store_shortdesc_firefox__",
    "version": "3.0.0",
    "permissions": [
        "*://*.example.org/*",
        "storage",
        "contextMenus"
    ],


   "target": "firefox"
}