404. That’s an error.

The requested URL /download.html?action=install&name=Offline%20Mail&message=You%20need%20to%20install%20Gears%20to%20use%20Offline%20Mail&icon_src=http%3A%2F%2Fmail.google.com%2Fmail%2Fimages%2F2%2Fgmail_icon_48.png&return=https%3A%2F%2Fmail.google.com%2Fmail%2F%23lsci&statcb=1 was not found on this server. That’s all we know.