Here is a list of Google Chrome extensions that may spy on you:
http://malwaretips.com/threads/list-of-browser-extensions-that-are-spying-on-you-chrome-and-firefox-htg.22459/Without now Extension Defender and finding out via a Fiddler session that there was hidden API tracking going on to share my info with whoever, I had been in the dark about it. Worst thing is that Google does not allow this according their extension rules, but silently seems to condone this tracking.
And they only allow extensions when Google Analytics for Apps is allowed to track usage:
https://developer.chrome.com/extensions/tut_analyticsRe:
http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/examples/->
http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/examples/api/ Google Analytics is like any other web analytics service helps the webmaster know what popular sites and keywords that their visitors have entered. It also helps to identify who their referrers are but it can pose privacy and security risk. An example is the recent security and privacy incident when Google, Intel, Adobe and other big company have become victims by hackers that attacked them via the flaw in a very old version of IE, and the attack has been dubbed as “Operation Aurora”. The IP addresses of the visitors of those affected company or websites has been released to hackers, as per reports. You don’t have to prevent visiting the website, forum or blog who uses Google Analytics. Simply block Google Analytics code, if you wish.
Quote from Donna Buenaventura•edited by: Lamar Stonecypher
HTTP Switchboard is a great extension to stop any tracking by toggling it's permissions (set green to red).
polonus