Navigate on paste

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Navigate on paste",
  "version": "0.7.1",
  "description": "Middle click on a page navigates to the content of the primary selection.  Requires Linux.",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "file://*",
        "ftp://*/*"
      ],
      "js": [
        "middle.js"
      ]
    }
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "icons": {
    "16": "navicon16.png",
    "32": "navicon32.png",
    "48": "navicon48.png",
    "128": "navicon128.png"
  }
}