This is weird - I hope it's a clue. Using Synaptic, I "Completely Removed" Firefox (which automatically entailed removing two Epiphany programs and Yelp). Then I immediately re-installed FIrefox and firefox-gnome-support. Now I can access https://www.amazon.com, https://launchpad.net, etc.
HOWEVER, when I click on the link https://launchpad.net/bugs/89023 as it appears in the "bounces<at>canonical.com" e-mail, I still get the PSM error message (I use Thunderbird). BUT I can type the same address into the address bar of an open Firefox window, and get the page. -- Update of Firefox disables PSM (not more SSL or saved passwords) https://launchpad.net/bugs/89023 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs