@Vivaldi interesting! I created a new user profile and allowed all cookies and trackers and no ad blocker. There it works. So it seems they are refusing login if trackers or other protection is enabled. Fun part is: In firefox it works, but there, the graphics is messed up.

I knew that TomTom has bad web design, but did not imagine it as bad.

@whvholst Do you know which DPA is responsible for TomTom?