Previously, we discussed creating a stronger password, setting up a two-factor authentication, and provided tips on how to prevent identity theft to strengthen your personal privacy and online security.

Unfortunately, even after reinforcing your security as much as possible through such measures, there are always ways for websites to gather your data – through a process known as “data-mining.” Data-mining is a relatively new technology that allows companies to collect information about the behavior of their customers and potential clients. In simpler terms, when a person visits a website, the owner of the website can track you and collect everything from your browsing patterns to personal data, and use algorithms to analyse and predict your future behavior.

To protect your data from being tracked, there are few browser extensions one can install.

Disconnect is an awesome anti-tracking extension for your web-browser. An open-source, pay-what-you-want project, Disconnect constantly updates its database, and provides useful tools such as secure Wifi and bandwith optimization that other browser extensions do not offer. Its primary function is to blocks third party tracking cookies, including those by social networking sites such as Facebook and Twitter and is easy to use. It is supported on Chrome, Firefox, Safari and Internet Explorer browsers.

Here is a short video about Disconnect and its goals:

If you are unable to use Disconnect, there are few alternatives such as Do Not Track Me and Ghostery.

In addition to the sites tracking you, the advertisements and scripts embedded on the websites also collect your browsing records.

AdBlock Plus extension is a great tool which blocks banner, pop-up, rollover, and other types of ads you encounter while browsing. An easy to use application, it provides an effective tool against third party tracking cookies and scripts. It should be noted that AdBlock Plus is only supported on Chrome and Firefox browsers.

If you wish to explore more ways to protect your online data, you can read more about on this great Lifehacker post.