Import Bookmarks into Firefox
In Edge browser saved web links are called “Favorites”. In Firefox, they’re called “Bookmarks” – but basically, they mean the same thing.
If you wish to, you can also select Internet Explorer and Chrome.
That is all you need to do. Your Edge favorites will appear as Firefox bookmarks! Before closing, I have to mention that, if you were to ever delete your Firefox bookmarks by mistake, you have a way to restore the deleted Firefox Bookmarks. Use Edge or Chrome? Then see these:
Import Favorites and Bookmarks into Edge Import Bookmarks, Passwords to Chrome.