Security Error: Domain Name Mismatch

You have attempted to establish a connection with "imap.fastmail.fm". However, the security certificate presented belongs to [long list of hosts ending in .messagingengine.com]...

If you suspect the certificate shown does not belong to "imap.fastmail.fm", please cancel the connection and notify the site administrator.

...which I haven't done - it seems more productive to bitch about it on slashdot. (over the years I've put quite a lot of effort into bug reports for various products and the rate of response is pretty discouraging)

An active MRI-type device triggers changes [...] manipulating the brain in this way, Emergent managers induce obsession with a single idea or specialty, which they call Focus, essentially turning them into brilliant [information] appliances.

24 hours (or even 24 seconds!) to render 20k of HTML should be considered a bug. Did you submit it to bugzilla? Does it still take a long time on a current version of Firefox?