The fantastic Gmail Manager extension for Firefox reaches version 0.5 – and includes what could be its killer function. Namely, the ability to check Gmail accounts which use ‘hosted domains’. What this means, in practice, is that you can have a web-based 2GB email account running with your own .co.uk domain name, for barely a couple of quid a year. So much more professional than an I’m-a-cheapskate email address, for loose change.