Chrome/Firefox: There are plenty of reasons you might not want to give out your real email address when signing up for a site or service. Maybe you're really big on privacy; or, more likely, you just hate spam, and figure the fewer places that know your real email address, the better.

Browser cookies are useful in some instances; unpleasant in others. While they can save you from having to go through a complicated authentication process whenever you're trying to access your favourite sites, they can also store data on what you've done on a particular website -- which can then be used to serve you more "relevant" advertising at a future point.

I recently stumbled across the extension Toby (Chrome, Firefox), and I'm surprised at how much I love it. So much so that it has replaced the pretty Chrome Delight and Earth View from Google Earth extensions I've been using whenever I open a new tab. I'm one-hundred per cent Toby now, because it's one of the best ways I've seen to get a little more control over all those open tabs in my browser.

Suppose you're trying to troubleshoot a family member's computer, you want to show a friend some issue you're having with your system, or you want to make a quick recording of some crazy thing you're about to do in a game. With the Chrome extension Loom, it's incredibly easy to capture and share a quick recording of your screen right from of your browser.