Examine source code of XSnare

{
  "name": "XSnare",
  "version": "1.2",
  "description": "Added notification for when a page has been sanitized",
  "permissions": [
    "<all_urls>",
    "activeTab",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "notifications"
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "background": {
    "scripts": [
      "lib/dom-purify/dist/purify.min.js",
      "sigs.js",
      "background.js"
    ]
  },
  "browser_action": {
    "browser_style": false,
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/get_started16.png",
      "32": "images/get_started32.png",
      "48": "images/get_started48.png",
      "128": "images/get_started128.png"
    }
  },
  "icons": {
    "16": "images/get_started16.png",
    "32": "images/get_started32.png",
    "48": "images/get_started48.png",
    "128": "images/get_started128.png"
  },
  "applications": {
    "gecko": {
      "id": "xsnare@example.com"
    }
  },
  "manifest_version": 2
}