fixup! Modify Addon support

components/feature/addons/src/main/java/mozilla/components/feature/addons/AddonManager.kt

@@ -154,6 +154,7 @@ class AddonManager(
             onSuccess = { ext ->
                 val installedAddon = addon.copy(installedState = ext.toInstalledState())
                 addonUpdater.registerForFutureUpdates(installedAddon.id)
+                setAddonAllowedInPrivateBrowsing(installedAddon, true)
                 completePendingAddonAction(pendingAction)
                 onSuccess(installedAddon)
             },