My 3ware RAID card is administered by using https://localhost:888/.
This worked fine on 3.6.28.
After upgrading to 12.0, when I attempt to visit that page, I just get
The connection was reset
The connection to the server was reset while the page was loading.
with no options to continue to the page.
In the Error Console, I can see this message:
localhost : server does not support RFC 5746, see CVE-2009-3555
I'm on Win7-64.
Go to Solution.
Problem was MS security patch, not Firefox.
Had to install fix to RAID's 3DM2.exe