If you're using an asp:imagebutton, make sure that the image you're using actually exists. If it doesn't, while IE will happily submit the form, Mozilla will not - it will just refresh the page. This means that you'll have trouble with your events.
If you're using an asp:imagebutton, make sure that the image you're using actually exists. If it doesn't, while IE will happily submit the form, Mozilla will not - it will just refresh the page. This means that you'll have trouble with your events.