diff --git a/chrome/content/zotero/xpcom/quickCopy.js b/chrome/content/zotero/xpcom/quickCopy.js
index 8cc8c9fd8..15b588fc8 100644
--- a/chrome/content/zotero/xpcom/quickCopy.js
+++ b/chrome/content/zotero/xpcom/quickCopy.js
@@ -111,11 +111,13 @@ Zotero.QuickCopy = new function() {
 			var urlHostPort = nsIURI.hostPort;
 			var urlPath = nsIURI.path;
 		}
-		catch (e) {
+		catch (e) {}
+		
+		// Skip about:, chrome:, etc.
+		if (!urlHostPort) {
 			return quickCopyPref;
 		}
 		
-		
 		var matches = [];
 		
 		var sql = "SELECT key AS domainPath, value AS format FROM settings "