Top 10 Best Firefox Extensions For Productivity & More [2022]

Many people choose Firefox over the more popular Google Chrome browser for many reasons. One significant advantage of the open-source Mozilla browser is that it is better for user privacy as they browse the internet. Another reason people prefer Firefox over Chrome is that it uses much fewer resources on your computer, putting less stress on your system overall.

But even with Firefox’s advantages, have you been using it to its fullest potential?

Much like Chrome and Safari, Firefox also has browser add-ons or extensions that can help improve your overall experience as you browse the web. Extensions can help you do all sorts of things, from blocking ads to taking better screenshots of your screen.

If you want to know more about what these add-ons can do, this article on the best Firefox extensions of 2022 can help.

What are Firefox Extensions?

Mozilla used to call their extensions add-ons. However, when the ever-popular Google Chrome started using extensions, the term became too commonplace, so Mozilla adopted it. Nevertheless, the terms addon and extension are used interchangeably.

Firefox extensions are plugins or apps that you can install on your browser. They can change your browser’s functionality by adding new features or modifying how the browser currently works. These extensions are helpful in several ways, such as adding some extra functions, fixing bugs, or beefing up your browser’s privacy and security.

The best extensions for Firefox can help you with things, including but not limited to:

  • Blocking all types of advertisements from getting displayed to you
  • Helping you manage your passwords
  • Helping you fill forms automatically
  • Preventing scripts running on websites (helpful for preventing malware or adware)
  • Enhancing memory usage and performance of your browser
  • Modifying how websites appear in your browser

Are Firefox Extensions Safe?

Most extensions you’ll likely come across are generally safe and beneficial, especially those developed by trusted companies or developers. However, just as with any third-party app or modification, there will always be a chance to encounter bad actors that create extensions for malicious purposes. It’s worth mentioning that any browser can suffer from risks like these, and it’s not a problem exclusive to Firefox.

For example, malicious adware devs can create extensions that inject ads into search engine result pages and websites. These extensions can also inject browser miners, hijack your homepage, or attempt theft of your login credentials. The worst part is that sometimes, these extensions may install without your permission.

Recommended Firefox Extensions

When an extension is submitted for consideration to Mozilla, it does get scanned for common problems (it might even go through some human reviews). However, that still does not guarantee 100% safety. To avoid running into problems, use only Firefox recommended extensions (which are vetted by Mozilla to be safe and beneficial) or:

  • Make sure you look at reviews and how many users an extension has before installing
  • Download extensions only from the official sources
  • Check what permissions you are giving the extension before installation and confirm they are within the scope of the addon’s functions

In the end, if you are getting your add-ons from official sources, you should be okay.

Best Firefox Extensions to Check Out in 2022

Adblock Plus

  • Over 5,200,000 users
  • 4.5/5 stars
  • Best Mozilla extension for blocking ads
Adblock plus firefox extension

Key Features

  • Blocks all ads but lets you “allow” some acceptable ads
  • Prevents websites from tracking you
  • Blocks domains known for malware
  • Block buttons for social media


  • FREE

Adblock Plus is one of the top Firefox addons available today. It works well for blocking ads, so you never have to see or deal with them. It saves bandwidth, clears up valuable screen real estate, and prevents your browser from loading malware or adware. You also control what you can see and what you block while preventing you from being tracked.

uBlock Origin

  • Over 5,500,000 users
  • 4.8/5 stars
  • Firefox recommended extension
uBlock Origin by Raymond Hill

Key Features

  • Blocks unwanted adverts
  • Light on the system and doesn’t slow your browser down
  • Has filtering options


  • FREE (though you can choose to donate to the developer if you’d like)

uBlock Origin, a Firefox Recommended add-on, is a plugin that is essentially vetted and proven to be good quality by Firefox. It is a 100% free and open-source add-on you can use on Firefox, Google Chrome, Edge, Opera, and more. And, like its sibling on Google Chrome, uBlock Origin on Firefox works by blocking ads and trackers. More than that, uBlock Origin also acts as a content filter so you can control what you see on the internet. As one of the best Firefox addons, uBlock Origin has been praised for being light on your system’s memory usage.


  • Over 770,000 users
  • 4.7/5 stars
  • Firefox recommended
AdGuard AdBlocker extension

Key Features

  • Blocks advertisements
  • Blocks buttons for social media
  • Prevents tracking
  • Blocks domains associated with malware


  • FREE

If you want to get rid of ads and unwanted distractions while browsing the internet, watching videos, and so on, AdGuard can help. As a straight-up ad blocker, AdGuard works well, blocking banners, pop-ups, rich media, video, and text ads. Adguard is free to use (though you will have to register for an account) and is also Firefox recommended.


  • Over 37,000 users
  • 4.1/5 stars
  • Also has a desktop app for Windows and Mac
Lightshot Firefox extension

Key Features

  • Take better screenshots
  • Edit, save, print, or share screenshots
  • Search the internet for content similar to the screenshot


  • FREE

Although every computer has a built-in method for taking screenshots, it can be challenging to take the perfect screenshot without a bit of help. Lightshot is a great extension that allows you to highlight, edit, save, print, and share your screenshots right from your browser.


  • Over 14,000 users
  • 4.4/5 stars
  • Firefox recommended
  • Best Extension for Web Clipping
Clippings by AE Creations

Key Features

  • Save clips of text from the internet for later use
  • Manage clippings
  • Import or export clippings
  • Assign shortcuts
  • Placeholders
  • Sync clippings


  • FREE

Although Clippings doesn’t quite have as many users as the other add-ons on this list, it remains one of the best addons for Firefox. Clippings makes it much easier to copy and paste, send canned responses, and keep your clipped data safe (instead of losing it when you accidentally copy something else).


  • Best extension for privacy
  • Over 1,100,000 users
  • 4.3/5 stars
  • Firefox recommended
Ghostery Firefox extension

Key Features

  • Ad blocker
  • Ghost mode
  • Ghost search
  • Password manager
  • Font size adapter
  • Stop autoplay


  • FREE forever plan, annual plan $3.99/mo, monthly plan $4.99/mo

Dark Reader

  • Almost 800,000 users
  • 4.6/5 stars
  • Dark mode on every website
  • Firefox recommended
Dark Reader

Key Features

  • Dark mode on the go
  • Filters
  • Site list
  • Custom website settings
  • Generate themes


  • FREE

Dark Reader is a Firefox-recommended open-source extension that works by creating dark themes for any website. There are customization options, a site list (for setting where Dark Reader applies and doesn’t), and many more features. If you like viewing things in Dark mode, this is the perfect addon.


  • Over 930,000 users
  • 4.1/5 stars
  • Best Spelling and Grammar Checker
Grammarly for Firefox

Key Features

  • Spelling, punctuation, and grammar checker
  • Plagiarism detector
  • Premium version has many more features to help improve your writing overall


  • Free forever plan, or
  • Monthly plan $30/mo, Quarterly plan $20/mo, Annual plan $12/mo

Available on many browsers, Grammarly is a well-trusted extension that helps improve your writing. Grammarly is a spelling, punctuation, and grammar checker with a free plan you can use forever. However, if you want more features, you’ll need to pay for the service (you can use one account on multiple devices). Grammarly also has desktop apps available.


  • Almost 100,000 users
  • 4.4/5 stars
  • Free Firefox extension for more mouse control
  • Firefox recommended
Gesturefy extension for Firefox

Key Features

  • Mouse, rocker, and mouse wheel gestures
  • 60+ actions
  • Gestures are customizable
  • Can blacklist some sites


  • FREE

If you’ve ever wanted to control your browser with simple mouse gestures, Gesturefy can help. This must-have Firefox add on is Firefox recommended and allows you to customize mouse gestures. You can also use the default gestures specifically for actions like forward, back, refresh, and more. The gestures only work once you perform a trigger action to tell the extension to listen for your gestures. You can set the trigger in your settings.

Unfortunately, Gesturefy has some limitations, such as that it doesn’t work when you are on SVG pages, like the about or a new tab on Firefox. For Gesturefy to work, there must be a partially loaded page at a minimum.


  • Over 3,300 users
  • 4.7/5 stars
  • Firefox recommended
  • Best for website customization

Key Features

  • Change a website’s appearance (font sizes, color schemes, content layouts, etc)
  • Auto-save function
  • Magic editor (for readability – remove unwanted clutter from a website)
  • Code editor (for people who know CSS)


  • FREE, but you can donate to support the developer

Although Stylebot isn’t necessarily popular at the moment, it’s still worth a look. This Firefox recommended plugin allows you to change how any website looks, so you don’t have to put up with obnoxious designs if you don’t want to. The best part is that you can do it all in your browser without knowing how to code.

Using Firefox Extensions

How to Install a Firefox Extension

Firefox Browser Add-ons
  • Search or browse for an extension you want to use. Once you find one, click on its link to open its extensions page. Click on Add to Firefox.
uBlock Origin
  • Check the permissions the extension is asking for before you click add.
Add firefox extension
  • And that’s it — your extension is installed!

How to Manage or Remove a Firefox Extension

To manage or remove your extensions, navigate to the Extensions Library by using one of the below methods:

  • On the top menu bar, click on Tools > Add-ons and Themes > Extensions
    Add-ons and Themes
  • Use the keyboard shortcut control + shift + A (Windows) or command + shift + A (Mac)

Your extensions library, pictured below, will open:

Manage your firefox extensions

You can enable or disable extensions and manage what you have installed from this page.

Frequently Asked Questions

Can I trust Firefox extensions?

There will always be the risk of bad actors creating malicious add-ons. However, if you are getting your extensions from trustworthy sources, the answer is yes. Ensure that you are also checking the permissions you are granting an addon to ensure they are consistent with its purpose!

What can Firefox extensions do?

Extensions can do many things — block ads, manage your passwords, beef up your privacy, help you take better notes, take screenshots or screen recordings, and much more.

Can Firefox extensions steal passwords?

Malicious extensions can steal passwords, so make sure you are getting your add-ons from safe sources! You should only download extensions for Firefox from official sources, such as or the extension’s official website (if there is one).

How do I manage Firefox extensions?

On Firefox, navigate to your menu bar and click on tools > add-ons and themes > extensions. Alternatively, you can press control + shift + A (Windows) or command + shift + A (Mac) > extensions. From this extensions library page, you can manage your add-ons.

How do you update Firefox extensions?

Open your extension library following the steps above and navigate to your extensions panel.

Check for Updates

Click on the settings or gear icon from the extensions panel to bring up the drop-down menu. You can check for updates, view recent updates, or set your add-ons to update automatically from this menu.

Where are Firefox extensions stored?

  • Windows – C:/Users/<yourusername>/AppData/Roaming/Mozilla/Firefox/Profiles/xxxxxxxx.default
  • Mac – ~/Library/Application Support/Firefox/Profiles/<yourprofilename>/plugins(or extensions)

To help you find your Firefox extensions folder more efficiently, this article may help.


The best Firefox extensions can help you improve your browsing experience by leaps and bounds. As long as you’re installing add-ons from trusted sources, you should be fine and at no risk at all. We hope that this list of the best has helped you find some great add-ons to try!

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Chriselle Sy
Chriselle Sy
+ posts

Chriselle has been a passionate writer for over 10 years, but she's a geek at heart. When she isn't busy writing, she spends her time streaming video games and learning new skills.

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