To replicate the problem:
- Create RadGrid and bind it a datasource
- Set ClientSettings - Selecting - AllowRowSelect to true
- Set ClientSettings - EnablePostBackOnRowClick to true
- Add a GridEditCommandColumn or a ButtonColumn with Edit/Save/Cancel CommandNames
- Enable AJAX for the Grid
- Run the application in FireFox
Clicking on the Edit button fires the RowClick event of the Grid instead of Edit/Save/Cancel.