Review for Remember Mismatched Domains by Julian Knight
Rated 5 out of 5 stars
An absolutely essencial add-on for anyone with their own certs and shared hosting services. I've used this with Thunderbird 1 & 2 and Firefox 1 & 2 (no longer needed for FF3) on both Windows and Linux.
To create your own collections, you must have a Mozilla Add-ons account.