Examine source code of Tab-Todo.txt

{
  "manifest_version": 2,
  "name": "Tab-Todo.txt",
  "version": "1.0",
  "description": "A Firefox extension that lets you copy and format the current tab into a todo.txt entry with a single keyboard shortcut!",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "copy-title-url": {
      "suggested_key": {
        "default": "Ctrl+Y"
      },
      "description": "Copy title, url and format into a todo.txt entry."
    }
  },
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "tab-todotxt@finextensions.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}