Cheep

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Cheep",
  "version": "1.0.1",
  "description": "Save up to 90% on flights. Get price data so you know to book or wait.",
  "background": {
    "scripts": [
      "/lib/jquery.min.js",
      "hot-reload.js",
      "background.js"
    ]
  },
  "icons": {
    "16": "img/16.png",
    "48": "img/48.png",
    "128": "img/128.png"
  },
  "browser_action": {
    "default_popup": "https://www.usecheep.com",
    "default_icon": "/img/1024.png"
  },
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://www.google.com/travel/flights*"
      ],
      "js": [
        "/lib/jquery.min.js",
        "/js/cs-google.js"
      ],
      "run_at": "document_end",
      "css": [
        "/css/style.css"
      ]
    }
  ],
  "permissions": [
    "tabs"
  ]
}