Blacksheep plug-in warns you about Firesheep
Since Mozilla couldn’t legally block the hacker extension, Firesheep, a handful of resourceful coders are doing the next best thing. One company has created a new Firefox plug-in called Blacksheep that will at least warn you that your information isn’t safe.
Firesheep is an extremely simple way for “hackers” to access their neighbors’ Wi-Fi sessions. While it doesn’t give them control of users’ systems, it does make them privy to what could be confidential information. There are a few methods of protection out there, including using a VPN anytime you’re using Wi-Fi, but that isn’t free or guaranteed. Now Firefox can directly offer an alternative.
Blacksheep was created by free add-on to Firefox that notifies you of Firesheep users in your open network. You get the warning, and you get out. The new extension works by displaying fake web sessions on the open network and checking in every five minutes for Firesheep spies. Blacksheep also gives you the LAN IP address of the delinquent, so if you feel like confronting everyone at the local coffee shop and demanding this information, you can.
