--- a/extensions/cookie/nsPermissionManager.cpp
+++ b/extensions/cookie/nsPermissionManager.cpp
@@ -1311,46 +1311,65 @@ nsPermissionManager::Read()
   int64_t id;
   nsAutoCString host, type;
   uint32_t permission;
   uint32_t expireType;
   int64_t expireTime;
   uint32_t appId;
   bool isInBrowserElement;
   bool hasResult;
+  bool readError = false;
+
   while (NS_SUCCEEDED(stmt->ExecuteStep(&hasResult)) && hasResult) {
     // explicitly set our entry id counter for use in AddInternal(),
     // and keep track of the largest id so we know where to pick up.
     id = stmt->AsInt64(0);
     if (id > mLargestID)
       mLargestID = id;
 
     rv = stmt->GetUTF8String(1, host);
-    NS_ENSURE_SUCCESS(rv, rv);
+    if (NS_FAILED(rv)) {
+      readError = true;
+      continue;
+    }
 
     rv = stmt->GetUTF8String(2, type);
-    NS_ENSURE_SUCCESS(rv, rv);
+    if (NS_FAILED(rv)) {
+      readError = true;
+      continue;
+    }
 
     permission = stmt->AsInt32(3);
     expireType = stmt->AsInt32(4);
 
     // convert into int64_t value (milliseconds)
     expireTime = stmt->AsInt64(5);
 
     MOZ_ASSERT(stmt->AsInt64(6) >= 0);
     appId = static_cast<uint32_t>(stmt->AsInt64(6));
     isInBrowserElement = static_cast<bool>(stmt->AsInt32(7));
 
     nsCOMPtr<nsIPrincipal> principal;
     nsresult rv = GetPrincipal(host, appId, isInBrowserElement, getter_AddRefs(principal));
-    NS_ENSURE_SUCCESS(rv, rv);
+    if (NS_FAILED(rv)) {
+      readError = true;
+      continue;
+    }
 
     rv = AddInternal(principal, type, permission, id, expireType, expireTime,
                      eDontNotify, eNoDBOperation);
-    NS_ENSURE_SUCCESS(rv, rv);
+    if (NS_FAILED(rv)) {
+      readError = true;
+      continue;
+    }
+  }
+
+  if (readError) {
+    NS_ERROR("Error occured while reading the permissions database!");
+    return NS_ERROR_FAILURE;
   }
 
   return NS_OK;
 }
 
 static const char kMatchTypeHost[] = "host";
 
 nsresult