Timestamp it! V2 light

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Timestamp it! V2 light",
  "version": "1.0",
  "manifest_version": 2,
  "minimum_chrome_version": "20",
  "description": "Easily add a UNIX timestamp of the current time and date to most form fields!",
  "icons": {
    "16": "resources/icon_16.png",
    "48": "resources/icon_48.png",
    "128": "resources/icon_128.png"
  },
  "permissions": [
    "contextMenus",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background_script.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "timestamp.js"
      ]
    }
  ]
}