Pinning to Home Page
How do I pin a site(URL) to my home page? v 94.0.2 Thank you!
Hi, do you mean on the built-in Firefox Home / new tab page?
If the site already has a square somewhere in the Shortcuts section, you can hover over the square until until a ••• menu button appears, click than, then pin the site. You also can rearrange those squares as desired.
If the site isn't there at all -- you can add more rows of shortcuts to see -- you can use that same menu to edit an existing square.
More info in these articles: