youtube sign in not working

[robaki]

Describe the bug When clicking on youtube's "sign in" button in the "View original" nothing happens, so I can't sign-in

To Reproduce Steps to reproduce the behavior:

1. Click on some YT item from the feed
2. Click on view original
3. Click on the "sign in" button
4. See error (nothing happens)

Expected behavior Being able to sign in into youtube

Desktop (please complete the following information):

• OS: Linux Mint 20.2 Cinnamon + i3 WM; kernel: 5.4.0-137-generic
• Browser: Firefox for Linux Mint, 109.0

Additional context I'm not sure if this is even supposed to be working, so maybe not a real bug.