How to make a settings page for an extension in FireFox?

Question

Mozilla Firefox

In chrome, there is an option to directly specify what the extension's settings page is.

manifest.json

"options_page": "options/options.html",

FireFox does not support this option. And even banned. How to be?

Answer 1

manifest.json

"options_ui": {
    "open_in_tab": true, 
    "chrome_style": true,
    "page": "options/options.html"
  },

Answer 2

https://github.com/firebug/devtools-extension-examples official plugin examples