diff --git a/source/main.pas b/source/main.pas
index 0d1cdaf4..e8ac5c94 100644
--- a/source/main.pas
+++ b/source/main.pas
@@ -5870,7 +5870,7 @@ begin
   actDataSaveBlobToFile.Enabled := HasConnection and inDataOrQueryTabNotEmpty and Assigned(Grid.FocusedNode);
   actGridEditFunction.Enabled := HasConnection and inDataOrQueryTabNotEmpty and Assigned(Grid.FocusedNode);
   actDataPreview.Enabled := HasConnection and inDataOrQueryTabNotEmpty and Assigned(Grid.FocusedNode);
-  actDataOpenUrl.Enabled := ExecRegExpr('^https?://[^\s]+$', CellText);
+  actDataOpenUrl.Enabled := (Length(CellText)<SIZE_MB) and ExecRegExpr('^(https?://[^\s]+|www\.\w\S+)$', CellText);
   actUnixTimestampColumn.Enabled := HasConnection and inDataTab and EnableTimestamp;
   actUnixTimestampColumn.Checked := inDataTab and HandleUnixTimestampColumn(Grid, Grid.FocusedColumn);
   actPreviousResult.Enabled := HasConnection and inDataOrQueryTabNotEmpty;