The site mail page when viewed in Firefox often pushes down to the point that the Send button is invisible. There appears to be a narrow scroll bar to the right of the page but it does not function in Firefox. Today, with a long list of site announcements at the top of the page, I could barely see the top edge of the send button. If I get a reply to one of my messages, I can't do a next level reply because the send button is out of sight at the bottom of the page.