Apple Notes App
Using Firefox, when I go to iCloud.com on my Windows laptop, all the normal icons for the apps appear. When I open the Notes app, the list of my Notes is accurate and complete. But, when I click on any Note, it doesn't open and therefore cannot be edited. But, using Microsoft Edge, a Note opens normally (and therefore is able to be edited).
Using Firefox, when I go to iCloud.com on my Windows laptop, all the normal icons for the apps appear. When I open the Notes app, the list of my Notes is accurate and complete. But, when I click on any Note, it doesn't open and therefore cannot be edited. But, using Microsoft Edge, a Note opens normally (and therefore is able to be edited).