Examine source code of Container Proxy v1.0.3

{
  "manifest_version": 3,
  "name": "Container Proxy",
  "version": "1.0.3",
  "description": "Assign different proxies to Firefox containers for secure browsing",
  "permissions": [
    "storage",
    "contextualIdentities",
    "proxy",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Container Proxy Settings",
    "default_icon": {
      "16": "icon.svg",
      "32": "icon.svg",
      "48": "icon.svg",
      "128": "icon.svg"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icon.svg",
    "32": "icon.svg",
    "48": "icon.svg",
    "128": "icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "container-proxy@bigsk1.com",
      "strict_min_version": "109.0"
    }
  }
}