What browsers only support SSLv2?

Question

What browsers only use SSLv2? I'm planning to disable SSLv2 on our web server, and would want to know what browsers will be affected. I can't find anywhere what SSL versions Firefox 1/2 and IE6/7 support.

Answer 1

According to the book, Data Center Fundamentals, page 369, SSLv3 support was added in Netscape 2.x and Internet Explorer 3.x, and TLS was added in Netscape 4.x and Internet Explorer 4.x.

So, SSLv3 support has been widely available since 1995–1996.

My working assumption is that SSLv2-only browsers are not found outside a museum.

Answer 2

To add to the answer, IE 6 without service packs only runs SSL 2. IE 6 with SPs can run SSL 3. WinXP can run up to IE 8.

http://answers.microsoft.com/en-us/ie/forum/ie8-windows_other/ie6-sslv3/f942e818-ffe0-4624-88d6-58dfcdd1ddc9

http://windows.microsoft.com/en-ca/internet-explorer/ie-system-requirements#ie=ie-8

Unbelievably IE 6 is still out there, yes, even in 2014. But, frankly, if you're concerned about security, it doesn't make much sense to turn around and say, well, if you can't use a key I guess we'll just leave the door wide open. If security is important then enforce it. I know, I know, you don't want to inconvenience your clients. But seriously, update your expired XP machine already...