Hi, Please try clicking on '''Mail''' below the '''Gmail''' logo on the top left to access Contacts. If it's still not accessible, do a '''Ctrl''' + '''F5''' refresh. If the problem persists you may have to contact [https://www.google.com/support/forum/p/gmail?hl=en Gmail support.]. Firefox and other browsers only display web pages and web mails in a nicely formatted way. All the actual content, settings etc. are stored and loaded from the remote site/server/mail provider's end.