FireShepherd is a Windows application that jams Firesheep to keep your browsing private. It operates simply by filling your wireless network with benign junk data. The program is a tiny program that will work automatically once opened. The programmer, Gunnar Atli Sigurdsson, warns that “the user is still in danger of all other session hijacking mechanisms” Do not do anything over a untrusted network that you cannot share with everyone, he says. And he’s rightbut you’ll at least be able to cross your worry list.”]
Source: https://gizmodo.com/how-to-stop-hackers-from-hijacking-your-accounts-with-f-5676841