Being safe on the internet (was Re: Here we go again - ISP DPI, but is it interception?)

Peter Tomlinson pwt at
Tue Aug 3 16:34:50 BST 2010

James Firth wrote:
>> In article <F83296DFE4A84016BC63F8053B95AAE5 at your41b8d18ede>, Tom
>> Thomson <colinthomson1 at> writes
>>> Firefox doesn't have any problems with that site's certificate when I
>> try it.
>> OK here as well (v3.6.7 for PC).
> OK here too.  Can you post the fingerprint you're getting from the
> certificate?  There's 2 options: MitM (unlikely) or certificate missing from
> your client (likely)
> James Firth
Thanks all for the help.

When I had the problems with several sites (which wasn't with v3.6.7 but 
with a slightly earlier version of FF), I created an exception for each 
of them - that put each cert in my list of certs accepted as exceptions, 
and indeed cybersec went in there.

So now I have deleted the cybersec cert from the exceptions list and 
tried again - and now FF doesn't complain. So it looks like something in 
FF got altered/updated in the transition from v3.6.x (whatever it was 
that I had) to v3.6.7. As I think I noted earlier, I haven't had the 
shower of complaints from FF about certs since I upgraded.


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