SixOrNot is a Firefox extension that provides a simple button-based display of IP address information informing you of the IPv6 status of remote sites. It also shows IPv4 addresses and other information.
This extension allows you to see at a glance whether the site you are connecting to supports the current generation of the Internet Protocol (IPv6) and whether you are capable of connecting using the same. A tooltip provides more detailed information about the remote site's IP addresses and a menu permits copying of the addresses to the clipboard. You can show the icon either in the address bar or as a toolbar button, permitting positioning almost anywhere within the Firefox window.
This addon does not consult with any external service to determine your own IP address, avoiding any privacy concerns arising from such behaviour. A major advantage this addon has over similar IP address addons is that it tries to make use of platform-native methods for determining local IP addresses and resolving remote ones. This permits a more accurate assessment of your IPv4/IPv6 connectivity.
· Mozilla Firefox
What's New in This Release: [ read full changelog ]
· Fix shutdown issue raised during validation