latest mozilla, https, and twig

[Brian May <bam@debian.org>]

Hello,

ii  mozilla-browse 0.9.3-1        Mozilla Web Browser - core and browser

If I to access twig via https://.../twig/ with Mozilla, it often goes
strange.  By this, I mean you click on a mail message (sometimes it
only happens for particular messages). Mozilla displays a warning:
Loading insecure page (really???), and dumps me back at the main logon
screen (it logged me out).

This didn't happen with Mozilla from one week ago. As a result, I have
had to recommend another user use Netscape until the problem is fixed
:-(.

Any ideas what is wrong?
-- 
Brian May <bam@debian.org>