9gag ScrollMeter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "9gag ScrollMeter",
  "description": "Have you ever wondered how many miles do you scroll on 9gag? Well then this tool is right for you!",
  "version": "1.1",
  "icons": {
    "128": "iconOn_big.png"
  },
  "browser_action": {
    "default_icon": "iconOff.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "webNavigation",
    "http://9gag.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://9gag.com/"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "jquery.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "basic.js"
    ],
    "persistent": false
  }
}