Do you not see the sync option in the menu of the browser? see screenshot Post a screenshot showing your menu. The 2nd screenshot shows that I'm logged into my account. Last screenshot shows my other devices.

@jonzn4SUSE Your third screenshot clearly shows there is NOT a checkbox for Extensions like there is in Firefox for Windows. I would not have posted this question if my Extensions had been synced.

Really @jonzn4SUSE? It's clear there is no options to sync Extensions.

I would like to have both Extensions and Settings syncable on Mobile, just like on PC