Create your own browser extensions, Part 4: Move toward browser-agnostic extensions

Every browser has its fans, detractors, advantages, and disadvantages. One thing they all have in common is that people increasingly spend more time using them. This series examines how to build the same basic extension for Chrome, Firefox, and Safari. You'll learn what it is like to extend each browser, how hard or easy it is to perform some common tasks, and how to distribute your extension. In this final article of this series, you'll create a common extension that all three browsers can share.

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