I'm getting this message at the bottom of the screen -
"You are approaching the server quota. Please review which data to sync." - I then get "You are currently using 26.9 MB"
If I then uncheck "History" which is using 26.7 MB, what exactly happens? Do I lose my History?
I also use Pale Moon on my laptop which is currently switched off, but in the evenings both machines are logged in.
I looked on the Forum & found PlacesCleaner mentioned but that appears to no longer exist - not that it's likely I'd have known how to use it.
I'm sorry, but I truly don't understand what's happening, if anyone can help me through this, I'd be very grateful.

Thank you for your time.