Examine source code of Persistent-Pretty-JSON

{
  "manifest_version": 2,
  "name": "Persistent-Pretty-JSON",
  "version": "2",
  "author": "Philippe Pitz Clairoux && J-F Poirier",
  "description": "Let's you write query selectors on web pages to pretty-fi json payloads persistently.",
  "browser_action": {
    "default_icon": "icon/JSONPrettier-48.png",
    "default_popup": "popup/host-management.html"
  },
  "icons": {
    "48": "icon/JSONPrettier-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_scripts/pretty.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background_scripts/background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "<all_urls>",
    "cookies"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "pitp2601@usherbrooke.ca",
      "strict_min_version": "57.0"
    }
  }
}