.. specifically, I can't get to a "manage sync" page.
On my desktop I have previously set up sync. But if I go to preferences/sync all I get is either set up sync or pair a device. If I go to set up sync and tell it I have an account, it just gives me a code to put into the new device. But this is no good because when I do that on the other device it wants my recovery key and I can't find any way to get to that .. if I go to set up sync and want to start from new it tells me my account already exists!
Anything to do with the Pale Moon Sync service.