Examine source code of AliasFleet - Email Alias Manager

{
  "manifest_version": 3,
  "name": "AliasFleet - Email Alias Manager",
  "description": "Create and manage email aliases instantly from any website. Protect your inbox from spam.",
  "version": "1.0.3",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus",
    "clipboardWrite",
    "alarms",
    "notifications",
    "tabs"
  ],
  "host_permissions": [
    "https://www.aliasfleet.com/*",
    "https://aliasfleet.com/*",
    "https://app.aliasfleet.com/*",
    "http://localhost/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@aliasfleet.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "auth-callback.html"
      ],
      "matches": [
        "https://www.aliasfleet.com/*",
        "https://aliasfleet.com/*",
        "https://app.aliasfleet.com/*",
        "http://localhost/*"
      ]
    },
    {
      "resources": [
        "sidepanel.html",
        "icon.png",
        "icon.svg",
        "logo-light.png",
        "logo-dark.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "commands": {
    "generate-alias": {
      "suggested_key": {
        "default": "Alt+Shift+A",
        "mac": "Alt+Shift+A"
      },
      "description": "Generate alias for current site"
    },
    "copy-last": {
      "suggested_key": {
        "default": "Alt+Shift+C",
        "mac": "Alt+Shift+C"
      },
      "description": "Copy last generated alias"
    },
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+O",
        "mac": "Alt+Shift+O"
      },
      "description": "Open AliasFleet popup"
    }
  },
  "action": {
    "default_title": "AliasFleet",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "sidebar_action": {
    "default_panel": "sidepanel.html",
    "default_title": "AliasFleet"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}