keep order while synchronising between browsers

[mila6452]

The order of my containers are very important for me. I haven't found an option to change the container orders in the drop down list when I open a new tab with right click on '+'. So that I have renamed them, set the open URL, spend lot of time. Than I realized on the other computer that the order is completely changed. (After FF made the auto-synchronization)
Q1: How can keep the same order fixed on different PCs?
Q2: How can I fix my actual situation? (One PC has the good order, the other is mixed)
Q3: Is it possible to set the order somehow? (in the drop down menu)