I am using foxyproxy for switching in between the proxies. I just found out that Google detects the change in the proxy address. I was forced to add captcha before even searching. I don't know that triggered. Also Google detected my original IP in what is my IP search query. I checked another site if that detection was right. check the link of image. Code: http://i.imgur.com/lPwD2.png So is there any way to get proxy address forced without google detecting it? Because if they are detecting proxy then opening another gmail account will have same source address. any good firefox addon that doesn't show my real IP and uses specific IP?