Mozilla Firefox is a fast, full-featured Web browser. Firefox includes pop-up blocking, tab-browsing, integrated Google, Yahoo and Bing search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

Mozilla Firefox has been around for a long time, and that means it’s gone through many iterations with varied success. In 2017, it launched its quantum update, which improved the speed and overhauled the design. This Firefox review will give you an idea of how it stacks up against other browsers.

Firefox is among the fastest browsers. It offers a lot of great features out of the box, as well as a solid library of add-ons and extensive customization options. Plus, it comes with strong privacy protection and, because Mozilla is a nonprofit organization, it has little incentive to collect and sell your data.

By default, Firefox sports a clean and simple interface that isn’t much different from other major browsers, such as Google Chrome. The tabs, address/search bar and bookmark bar are layered on top, and there’s a space for navigation controls on the left. That said, unlike Chrome, Firefox comes with a lot of customization options for the interface. Every element of the basic UI can be moved around, and several buttons can be added anywhere you like with a simple drag-and-drop process.

Firefox was the first major browser to offer external add-ons, and though its library has since been eclipsed in size by Chrome’s, it still offers a wide variety of functionalities, such as tab groups, password managers, built-in notes and much more. Setting up and syncing your browser across devices is quick and easy. As long as you create a Firefox account, your bookmarks, preferences, search history, logins, add-ons and even open tabs will be synced between your devices.

That said, Firefox warns that it’s not a backup service, so if you don’t sync more than one device, nothing will be saved if that device breaks or you uninstall the browser. Check out our list of best cloud backup services if you’re looking for a way to get around this. That might sound like a limitation, but it means that Mozilla doesn’t keep giant records of its users’ synced data, which is great for privacy, especially compared to Chrome, where Google will collect any information about you it can.

On the right side of the address bar are small but useful features. By clicking the arrow pointing down, the address bar extends to show you the last 10 searches you made, as well as alternative search engines, such as Wikipedia, Amazon or Twitter. You can customize those additional search engines, too. Firefox gives you many options to make easily accessible.

Another fantastic feature is the screen capture tool. Located in the three-dots menu next to the address bar, it allows you to take a screengrab of an entire webpage without scrolling. You can also select specific parts of a page to screengrab, which saves you the effort of manually selecting and cropping when you only want to share part of a page.

Another handy sharing feature in the same menu is the “email link” option that automatically creates an email using your default email provider, which you can customize, to send the link. There’s also a button to copy the link, though that’s less useful, as well as an option to send the link to one of your other devices.

There’s a reader view, too, which strips articles of unrelated content and formats them into an easily digestible style, as well as providing you with an estimate of how long they’ll take to read. The built-in .pdf reader is also useful, but it lacks advanced features, such as document signing or support for dynamic .pdfs.