diff --git a/src/General/lib/$.coffee b/src/General/lib/$.coffee
index 7578b27b0..1b29eb85e 100755
--- a/src/General/lib/$.coffee
+++ b/src/General/lib/$.coffee
@@ -343,6 +343,9 @@ do ->
       if chrome.runtime.lastError
         c.error chrome.runtime.lastError.message
         for key, val of data when key not of items[area]
+          if area is 'sync' and chrome.storage.sync.QUOTA_BYTES_PER_ITEM < JSON.stringify(val).length + key.length
+            c.error chrome.runtime.lastError.message, key, val
+            continue
           items[area][key] = val
         timeout[area] = setTimeout setArea, $.MINUTE, area
         return