Good People, can anyone explain why my installation of Firefox (v3.0.1) on Windows 2000Pro has ceased (as of ~1st September) to connect thru https protocol? As for many years, all worked fine on 29th August but attempts to reach the same website on Monday, 1st Sept, yielded an error 'window' stating "ssl_error_no_cypher_overlap". Sites using the plain http protocol worked fine. I had not made any changes (in any part of the system) over the weekend. I used the installed copy of Kaspersky to check for malware and found "No threats detected". On the suggestion of the 'websites helpdesk' I tried typing the address (and not the bookmark used without failure over the years), but same result. Tests showed that a 'virgin' (not previously connected to the Internet) installation (Firefox3.0.1 on W2k, no KIS but on a different PC) gave the same result, as did a (separate 3rd PC) installation of Ffox3.0.1 on XP (and the native version of Internet Explorer also failed). Further, I found that (on the original PC) 3 more of my bookmarks using https failed with the same error report. Use of a friends system (Wndows 7 and native IE) showed that the website (of the original failure) was functioning OK. Comparison of settings showed that both (Ff3/W2k and Win7) used SSL3. Turning to this ('look see' trial) installation of Ubuntu 12.04LTS (with Girefox23.0 on my original PC) showed access was achievable, but I can not determine what settings are deployed. Whilst a migration (of OS and/or browser) is anticipated in the long term, a solution on my current prefernce (W2k & Kaspersky) is highly desired from functional, comfort and trusted security considerations, so any suggestions (known to solve the problem).