Firefox - Unexpected response from server

[Albert Wagner]

Alex Janssen wrote:
> For some time now I've endured these messages, "Firefox doesn't know how 
> to communicate with the server." from Firefox when trying to load secure 
> pages with the HTTPS protocol. I was able to boot Firefox before loading 
> such a page to get it to load properly, but now, even that fails after 
> the most recent updates of today.  Can anybody enlighten me as to how to 
> fix this.
> 
> Thanks,
> Alex
> 
FWIW, I selected re-install Firefox in Synaptic, waited for the 
reinstallation, then shutdown any/all open copies of Firefox and 
restarted Firefox. Firefox now works as it did before, properly handling 
https sites.