Diễn đàn hỗ trợ Firefox

I changed my laptop and install Firefox browser on the new one but all my bookmarks are gone. I thought bookmarks automatically sync with Firefox account, like it work in another browser. But as I understand it doesn't work in this way in Firefox and I need to create a JSON file to restore my bookmarks, what is a total bullshit. what is a purpose to have a Firefox account if I cannot sync my data between different devices?

Hello, I have somehow replaced by bookmarks with empty bookmarks, and I don't have the previous version in backups on my local machine.

Could you help me?