First, congratulations on the new release!
I noticed on the download page that Firefox reports that "The connection
to the web site is not fully secure because it contains unencrypted
elements (such as images)":
This seems to be exactly the case as the shortcut icon is hardcoded to
<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 3.2 Final//EN”>
<meta name=‘robots’ content=‘index,follow’ />
<link rel=‘SHORTCUT ICON’
As it is now, one would have to block the images to be able to see that
the connection is secure before downloading Jitsi.
If you change the URLs to use "https://" or even just "//" the
connection should be reported as secure directly.