When I try to log in to Trello the site shows its working to open, but never does open

It is different than locking up. I use two factor authentication with an Atlassian passkey. My browser (Firefox) shows that it is working to open with the sliding dots in the tab, but nothing happens. I have let it run for up to 15 minutes and nothing opens. Sometimes I get an activity wheel in the center of the page, but it just sits there waiting for something. Trello works perfectly on my iPad and my Google Pixel phone