Examine source code of distracted.work

{
  "manifest_version": 2,
  "name": "Distracted Work",
  "version": "1.2.19",
  "description": "Stay focused. Block distracting sites and get redirected to a friendly reminder to get back to work.",
  "author": "distracted.work",
  "homepage_url": "https://distracted.work",
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg",
    "128": "icons/icon-128.svg"
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "shared/blocking-logic.js",
      "background/blocker.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    },
    "default_title": "Distracted Work",
    "default_popup": "popup/popup.html"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "redirect/redirect.html",
    "redirect/redirect.js",
    "redirect/messages.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "distracted-work@distracted.work",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}