Examine source code of Feri

{
  "name": "__MSG_extensionName__",
  "short_name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "icons": {
    "16": "images/icon/icon-gray-16.png",
    "24": "images/icon/icon-gray-24.png",
    "32": "images/icon/icon-gray-32.png",
    "48": "images/icon/icon-gray-48.png",
    "64": "images/icon/icon-gray-64.png",
    "96": "images/icon/icon-gray-96.png",
    "128": "images/icon/icon-gray-128.png"
  },
  "manifest_version": 2,
  "minimum_chrome_version": "76",
  "browser_action": {
    "default_title": "__MSG_extensionName__",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "feri@knightmode.addons.mozilla.org",
      "strict_min_version": "68.0"
    }
  },
  "permissions": [
    "<all_urls>",
    "storage",
    "tabs"
  ],
  "default_locale": "en",
  "version": "2024.3.30"
}