What is the most privacy respecting way to convert links to QR code in Firefox?

Iam looking for a way to convert links to QR code like in chromium browsers but for Firefox in a way which is private and convenient and lvl up the usability.

Could you please help me?

So far I’ve been using this firefox addon: Offline QR Code Generator – Scarica l’estensione per 🦊 Firefox (it)

It’s working well so far.

You could a site like IT Tools - Handy online tools for developers. Can be selfhosted if you don’t trust the owner who runs it and it’s foss.

This looks like a very easy way of doing it in any browser: