Use multiple browsers

This is part of a series of blog posts I’m writing about hardening your computer.

Until a few months ago, I didn’t do anything special to protect my computer from an attacker or from being tracked while browsing the web. I was running OS X after all, isn’t that enough? Guess what, it isn’t.

I have since then read a lot about hardening my computer and my browser in order to keep, as much as I can, my computer integrity and my browser searches from becoming ads tailored to me. There is nothing more annoying than looking for a product on Amazon only to see the same product for weeks on every single ad.

This is the first of many blog posts where I’ll be sharing what I’ve learned so far. Today, I’m going to talk about why you should be running multiple browsers.


To use more than one browser for different purposes is probably one of the best security and privacy measures one could take. The reason why this is extremely important is because data from one browser is just not shared with another.

So, as an example, you could use Firefox for accessing your trusted websites (online banking, email) while using Chrome for accessing all other websites. This way, if a website you visit run a malicious code on Chrome, it won’t have access nor know anything about your online banking on Firefox. Clever, isn’t it?

I’ve read some people recommending adding a third browser (or a different browser profile) with Javascript disabled and use that for browsing unknown websites. Disabling Javascript is a very good way to protect your browser, however many websites are not going to work properly with it disabled.


On the next post, I’ll be talking about why I decided to use Chrome for accessing all but my trusted websites and on a future post what did I do to harden it.