The iMacros add-on automates many of the repetitive tasks users encounter online. The iMacros for Firefox add-on can be customized to fill out forms, initiate password requests and automate other online activities. These are 14 of the best Firefox add-ons you can use to turn Firefox into a powerhouse. We scoured Firefox's repository for add-ons and selected those with the most users and top reviews. While Firefox is a well-rounded browser in its own right, its capabilities can be expanded by installing any of a wealth of extensions that can boost performance and improve users’ workflow. (It’s available for download if you haven’t tried it yet, and want to.)

On top of that, Mozilla made a big deal about the release of the latest version – Firefox Quantum – which the company says is twice as fast as the browser was earlier this year. And after slipping in recent years, it has been on something of a rebound this year. Firefox isn’t the most popular browser in the world - that honor now goes to Google Chrome - but it still has an ardent following.

Best mozilla firefox extensions