If you want to get in touch with me, I’m best reached by email at I’ll answer as quickly as I can.

When I’m not travelling I can usually be found at Mozilla’s offices at the Metal Box Factory in 30 Great Guildford St on the weekdays. The nearest tube stations are London Bridge and Borough.

I read paper mail that is sent to:

Andreas Tolfsen
Mozilla Corporation
Metal Box Factory, Suite 441
30 Great Guildford St
London SE1 0HS

I read SMS on mobile phone that is sent to (+44) (0)78 7156 8193.