manifest.json

{
    "manifest_version": 2,

    "name": "Undo Movement",
    "description": "Lets you undo accidental page movements (eg an accidental page down)",
    "version": "1.0.1",

    "icons": {
        "16": "icon16.png",
        "32": "icon32.png",
        "192": "icon192.png"
    },

    "background": {
        "scripts": ["jquery-3.1.0.min.js", "undo.js"],
        "persistent": true
    },

    "browser_action": {
        "default_popup": "popup.html"
    },

    "content_scripts": [{
        "js": ["jquery-3.1.0.min.js", "scroll.js"],
        "matches": ["http://*/*", "https://*/*", "ftp://*/*"],
        "run_at": "document_end"
    }],

    "commands": {
        "undo": {
            "suggested_key": {
                "default": "Ctrl+Shift+K"
            },
            "description": "Undo the most recent page scrolling action"
        }
    },

    "permissions": [
        "activeTab",
        "<all_urls>"
    ]
}