Tridactyl for Firefox Security Advisory

I'm trying to publicise this as much as possible as we have a pretty horrible security bug in Tridactyl 1.14.0 - 1.14.10 and 1.15.0.

If you're a user, update to 1.16.0+ or 1.14.12+ to be safe. You can find out what version you're using with `:version` and update by going to `about:addons`, right clicking the Tridactyl listing, and clicking "Find updates".