Top Sites & Firefox Sync
The solution might be easy but I didn't see it
How can I backup my Top Sites customized (pin sites + personalized pictures) ?
I spent too much time on this customizing, and I don't know how many time I had to redo it after it got all removed/ messed up by I guess Firefox Sync ?
I would like my computer to be the primary instance, and that NONE of the other instance could make any change on the primary. Currently I have no idea how it really works, I think that every time I add a device on my sync "family" it mess up my computer Firefox instead of syncing my settings on the new device.