In a medium nonreactive pot, bring the vinegar, 3 cups of the sugar, and the salt to a simmer.
Add the allspice and cloves and let steep off the heat for 10 minutes.
Add the figs to the pot, return to a simmer, and cook over low heat for 10 minutes.
Let cool and then refrigerate overnight.
The next day, bring the figs back to a simmer with the remaining 1 cup sugar over low heat and cook for 10 minutes until they are soft, slightly shrunken, and flavorful.
Allow the figs to cool before refrigerating, where they will keep for a month or so.