Examine source code of Mailman Moderation

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "0.6.7",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/dasisdormax/mailmanmod-webextension",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "mailmanmod@thenail.cc",
      "strict_min_version": "60.0"
    },
    "edge": {
      "browser_action_next_to_addressbar": true
    }
  },
  "icons": {
    "64": "icons/mmm-64.png",
    "128": "icons/mmm-128.png"
  },
  "browser_action": {
    "browser_style": false,
    "default_icon": "icons/mmm-64.png",
    "default_title": "__MSG_extensionName__",
    "default_popup": "html/popup.html"
  },
  "background": {
    "page": "html/background.html"
  },
  "options_ui": {
    "browser_style": false,
    "page": "html/options.html"
  },
  "permissions": [
    "<all_urls>",
    "storage"
  ]
}