Recently my computer crashed, resulting in a reinstall of all software. Everything worked fine, excepting that a fresh install of Firefox is now showing me the wrong time. For example, my Gmail account shows me that the time now is 24:00 whereas the time on the computer is correctly set to 17:00. Equally, forum entries that normally show me the time posts were added with my time zone, are now several hours off. I just installed the simpleclocks Firefox extension, and it tells me the time now in the UK is 01:00, when in actual fact it is 08:00. This never used to happen, is there something I can tweak to set it right again?