manifest.json

{
    "manifest_version": 2,
    "name": "Process Google Dataset",
    "description": "This extension creates a dataset from a Google Image search.",
    "version": "0.0.1",
    "content_scripts": [
        {
            "matches": [
                "https://www.google.com/*tbm=isch*"
            ],
            "js": [
                "index.js"
            ]
        }
    ],
    "permissions": [
        "downloads",
        "downloads.open",
        "downloads.shelf"
    ],
    "icons": {
        "16": "logo.png",
        "48": "logo.png",
        "128": "logo.png"
    },
    "browser_action": {
        "default_icon": "logo.png",
        "default_popup": "popup.html",
        "default_title": "Process Google Dataset"
    }
}