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What’s a browser extension? I’m guessing you already know this: it’s a free add-on tool designed to supplement or customize the built-in functions of your Web browser. You can use extensions to do such things as simplify your Internet searches, make it easier to save Web pages to your Delicious account, improve your experience of YouTube videos, or block advertisements that intrude on your ability to read the news. Customizing your Web browser with your own selection of extensions is akin to the way gearheads customize their prized muscle cars… except it’s much, much geekier.
So what are your favorite browser extensions? What customizations can’t you live without? Let us hear from you in the comments!