Examine source code of g-anonymizer

{
  "browser_action": {
    "browser_style": true,
    "default_title": "G anonymizer",
    "default_icon": {
      "38": "icons/Active_icon_48.png"
    }
  },
  "page_action": {
    "default_icon": "icons/Active_icon_48.png",
    "default_title": "G anonymizer"
  },
  "description": "Protect your privacy, avoid google tracking cookies.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*/*",
    "cookies",
    "<all_urls>",
    "history",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/Active_icon_48.png",
    "96": "icons/Active_icon_96.png"
  },
  "manifest_version": 2,
  "name": "G-anonymizer",
  "version": "2.1"
}