I believe instead of robes, the wizarding students wear tracksuits and wave wands while incanting "recumbo!"
Sounds like the kind of school I would run.
If you mean bookmarks, which Microsquish decided to call favorites, then I’d just remove and re-install Firefox. This time when it asks you if you want to import your bookmarks say “Yes, indeedie I do.”
Or whatever the option is on their dialog.