Collabora does'nt open documents in firefox correctly

I encountered a problem today. Collabora opens blank documents. The problem started after updating Firefox to version 120. After reinstalling Firefox to 119, documents open correctly again. What is it about ? are these any new security options?

Works here.
Which NC version and Office version are you using?

Mine is v27.1.4

My verion is older. 21.0.0. I will update today.