Bookmarks invisible on new android phone in spie of sync with laptop nd previous phone

I recently bought a Samsing Galaxy S 26. Everything transferred well from my old S20. Also Firefox except for bookmarks. When you press the bookmrk icon you do not get access to the bookmarks of the computer, as in the old phone, but an image of a fox and the recommendation to keep all your bookmarks togther. There is no way foreard from this. The three dots do not respond.