manifest.json

{
    "name": "Hide Element",
    "description": "Right click to hide an element",
    "version": "0.1",
    "permissions": [
        "contextMenus",
        "storage"
    ],
    "background": {
        "scripts": ["background.js"]
    },
    "content_scripts": [
        {
        "matches": ["<all_urls>"],
        "js": ["content/cssUtil.js", "content/xpathUtil.js", "content/content.js"],
        "run_at": "document_start"
        }
    ],
    "icons": { 
            "16":  "images/icon16.png",
            "48":  "images/icon48.png",
            "128": "images/icon128.png" 
            },
    "browser_action": {
        "default_icon": "images/icon19.png",
        "default_popup": "browser_action/popup.html"
    },
    "manifest_version":2
}