Just install 13.04 and am having trouble setting up online accounts with facebook. It opens up firefox and when I log in it comes up with a security warning. Any ideas why this is or what I could do to fix it?
There's a bug filed for this issue: https://bugs.launchpad.net/bugs/1180297
The root cause is that Facebook redirects to an insecure HTTP page during the authentication process, and for security reasons we don't allow that. The same problem appeared in February, and then Facebook was quick to fix it in a few days. Now it seems it's taking longer, but I'm still hopeful.