Examine source code of NoFap Panic Button

{
  "manifest_version": 2,
  "name": "NoFap Panic Button",
  "description": "This extension provides an in browser version of the NoFap Emergency Relapse Prevention Tool.",
  "version": "1.3.3resigned1",
  "applications": {
    "gecko": {
      "id": "@panicbutton"
    }
  },
  "icons": {
    "16": "data/icon16.png",
    "19": "data/icon19.png",
    "32": "data/icon32.png",
    "48": "data/icon48.png",
    "64": "data/icon64.png",
    "128": "data/icon128.png"
  },
  "browser_action": {
    "default_popup": "data/popup.html",
    "default_icon": {
      "16": "data/icon16.png",
      "19": "data/icon19.png",
      "32": "data/icon32.png",
      "48": "data/icon48.png",
      "64": "data/icon64.png",
      "128": "data/icon128.png"
    }
  },
  "options_ui": {
    "page": "data/options.html",
    "browser_style": false
  },
  "incognito": "spanning",
  "background": {
    "scripts": [
      "data/nsfwguard_webrequestlistener.js",
      "data/subredditDBLoad.js"
    ]
  },
  "web_accessible_resources": [
    "data/popupbox.css",
    "data/popupbox.html"
  ],
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "*://*.reddit.com/r/*",
    "*://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "data/popupbox.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.reddit.com/r/*"
      ],
      "js": [
        "data/nsfwguard_contentscript.js"
      ],
      "run_at": "document_start"
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self';"
}