Login does not work on current Firefox Nightly (81.0a1 (2020-07-29) (64-bit))

[fluffynuts]

Affected part of DeckDeckGo

• [x] Login
• [ ] Studio
• [ ] Remote control
• [ ] Documentation
• [ ] Demo
• [ ] Starter kit
• [ ] Poll
• [ ] Web Components
• [ ] Templates

Reproduction

Steps to reproduce:

1. Open deckdeckgo.com with Firefox Nightly
2. Attempt to log in (I tried via GitHub)
3. Log in at auth provider
4. When redirected back to deckdeckgo.com, I'm still presented with the dialog to log in

Expected Behavior

To log in and start making sweet, sweet slides!

Actual Behavior

No login, no slides, sad trombone sounds

Environment

• Firefox Nightly (81.0a1 (2020-07-29) (64-bit))
• Windows 10 version 2004

[peterpeterparker]

Nice thank you! We should keep an eye on this, let's see if it is a nightly "issue" or if it needs an update of FirebaseUI

[fluffynuts]

I agree that sometimes FFN introduces oddnesses that go away after a round of reports & bug-fixing (which reminds me: if you can get more info, it would be good to log an issue with Mozilla -- I'll gladly help, though I have no idea where to start with your stack); sometimes, however, FFN acts as the canary in the mine, warning of the impending doom that's going to eventually come everywhere (eg ssl vs cookies, as I'm finding out in our own products)