I can't send email from the lead page

I can't send email from the lead page

I press the send mail button and instead of opening a new email tab, it says 'Pop-up Blocker is enabled in your browser. Kindly disable that and try again'

I am using Chrome on my Mac. I was using Safari, but the same message appeared.

I am not that dim and I have disabled the pop up blocker in both Safari AND Chrome, but the message still appears....

Any ideas??