Can't login with new Unity Hub

When I click to login a new tab opens in my browser, then Unity Hub waits and waits and waits, then writes: “Something went wrong. Please sign in again.”

How can I continue working?
Is there another way to login?

(I’m logged in in the website. There are no firewall restrictions or funky browser settings. Just default Firefox.)

I have similar problem, today I got asked to login to Unity Hub (which is kinda weird because it’s first time it happened since signing up several months ago) and it seems that everything goes fine until opening link by Hub (logging onto account through browser works okay).

Edit: After I was done writing post the problem is already gone. I guess they fixed it.

I saw the original project selection screen (with successful login) after I clicked “Create account”.
When I started a project, the editor told me that I have to login as my pc was detected as an unauthorized device.
Everything seems to be working now, hopefully, maybe, but it’s still weird and kinda scary.
After last month’s fiasco, I wish Unity would chill for a while instead of breaking more and more.