How to add/ install external extension to FreeFlarum?

Hi, I'm new and newbie. I'm using FreeFlarum. How to add/ install external extension?

That isn't supported on FreeFlarum. You can request the extension you need, but there's no guaruntee it will be added.

askvortsov Ok, thank you.

You can also get direct support via their very own discussion here on Flarum by clicking here.