Hi, example given: <a alt="bla" onclick="return gtag_report_conversion('mailto:chief@example.com?subject=bla%20bla%20bla&amp;body=more%20bla%20bla');" href="mailto:chief@example.com?subject=bla%20bla%20bla&amp;body=more%20bla%20bla"><img src="https://image.example.com/image.png" /></a> works well with Chrome, Edge, Samsung but NOT with Firefox. Without the onclick-Event it works with Firefox too <a alt="bla" href="mailto:chief@example.com?subject=bla%20bla%20bla&amp;body=more%20bla%20bla"><img src="https://image.example.com/image.png" /></a> As the onclick is essential I wonder if there is a fix for the fox? Thanks in advance, Alex