manifest.json

{
"update_url": "https://clients2.google.com/service/update2/crx",

    "name": "LPU UMS Extension",
    "description": "Now login to LPU UMS is Made simple by this litte Cuddy.",
    "version": "4.4.3",
    "permissions": ["activeTab", "tabs", "storage"],
    "background": {
        "scripts": ["js/background.js"],
        "persistent": false
    },
    "icons": {
        "16": "images/Icon-16.png",
        "24": "images/Icon-24.png",
        "32": "images/Icon-32.png",
        "48": "images/Icon-48.png",
        "128": "images/Icon-128.png"
    },
    "content_scripts": [{
        "matches": ["https://*.lpu.in/*"],
        "js": ["js/jquery-3.2.1.min.js", "js/content.js"]
    }],
    "options_page": "option/options.html",
    "manifest_version": 2,
    "browser_action": {
        "default_icon": {
            "16": "images/Icon-16.png",
            "24": "images/Icon-24.png",
            "32": "images/Icon-32.png",
            "48": "images/Icon-48.png",
            "128": "images/Icon-128.png"
        },
        "default_popup": "index.html",
        "default_title": "EASY WAY TO LOGIN UMS"
    },
    "commands": {
        "_execute_browser_action": {
            "suggested_key": {
                "default": "Ctrl+Shift+U",
                "mac": "MacCtrl+Shift+U"
            },
            "description": "Shortcut to open LPU UMS Extension"
        }
    }
}