Free Tracker & Ad Blocker for Firefox

Block ads, cookies, popups & other trackers. Ghostery's Firefox extension sets you up for a private, transparent, and fast internet.

100+ million downloads across platforms

15+ years fighting for your privacy

Always open source

Get Ghostery for Firefox

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Puts you back in the driver’s seat!

Ghostery stops trackers, ads, and popups in Firefox and keeps your personal data private and off the data brokers’ wallets. Your personal data is your business!

Privacy Protection

The Firefox Tracker & Ad Blocker extension built by Ghostery takes things to the next level. Every ad, popup and tracker carry your personal information across the web. This data can be used to harm you anytime. By using Ghostery you protect your privacy.


Behind every website visit or search you make, trackers are recording and transmitting every step you take. Ghostery's Firefox tracker blocker extension neutralizes these trackers ensuring your peace of mind. Over the Tracker Panel, Ghostery displays the trackers that were identified and neutralized.

Speed & Focus

The more resources load on a website, the slower it gets. By decluttering the web, Ghostery's Firefox Ad blocker extension speeds up pages and avoids draining your internet bandwidth and battery.

Community Powered

Ghostery tracking protection is powered by many. Once a new tracker is detected by one of our users, everyone’s privacy improves. Our code is open source, everyone can investigate it. Browse the internet safer with Ghostery's Firefox Tracker & Ad blocker blocker extension for mobile & desktop!


Engineered for privacy protection

Ghostery stops trackers on Firefox - blocks ads, cookies and popups - clicks you out of consent dialogues at each website visit.

Ghostery Tracker & Ad Blocker panel detailed view displaying settings and blocked trackers

Tracker Panel

Ghostery x-rays the web to display every tracker lurking behind the websites you visit.

To secure your privacy all trackers are neutralized. Your personal data are detached and replaced by random values, leaving data collectors in the dark about your identity.

Ghostery Tracker & Ad Blocker panel simple view displaying Ghostery Privacy building blocks

Privacy Building Blocks

  • Anti-Tracking

    AI-driven technology neutralizing trackers’ ability to collect your personal data. Replacing it by random values it puts data brokers in the dark about your identity and sends a personal message of tracking being unacceptable.

  • Ad-Blocking

    Removes all advertising and promotional content from the websites you visit, leaving you with a clutter-free, focused view on information. The less resources load on a page, the faster it gets.

  • Never-Consent

    Clicks you out of all consent dialogues in favor of never tracking. This unequaled feature adds convenience to each website visit and acts like your globally active privacy advocate towards content providers.

Ghostery Tracker & Ad Blocker panel detailed view displaying customization options


You’re in control!
Block or unblock individual trackers as you see fit. Reasons are up to you! Ghostery always acts in the interest of keeping your personal data private!

Over 100+ million Ghostery downloads for privacy protection

Join the Ghostery user community and protect your personal data online

FAQ: Tracker & Ad blocker for Firefox

Can Firefox block trackers?

Firefox does allow you to block some trackers using its enhanced tracking protection feature but Ghostery offers you a more robust service to block trackers. Download our Firefox Ad blocker extension for free to block trackers, popups, consent boxes and more. Enjoy the internet without compromising your privacy.

How do I block online trackers?

You can stop trackers by downloading our Ad blocker extension. Our Firefox extension blocks cookies, popups, consent boxes and many other trackers. Our AI tracker replaces your details with random values - making sure that your personal data is untrackable.

How do I stop Google tracking in Firefox?

While you can block specific website trackers on Firefox, Ghostery offers superior tracker blocker features including stopping cookies, popups, and we also block ads! It's fast and easy. Get started by downloading the Ghostery Ad blocker extension to ensure that all online trackers are blocked and your personal information is kept private.

Do tracker blockers work?

Yes! Tracker blockers work. Download our tracker blocker Firefox extension for free and enjoy a faster and safer internet browsing experience. We block cookies, popups & other harmful trackers.

How do I stop websites from tracking me?

The easiest way to stop websites from tracking you is to download our free Ad & Tracker Blocker Firefox extension. Our tracker blocker extension stops websites from collecting your personal data and tracking your movements across the web.

Does Firefox have an ad blocker?

Yes, Firefox has built in ad blocking capabilities. However, as their own team puts it, most users choose to use ad blocker extensions such as Ghostery for better results. The Ghostery Firefox ad blocker extension works on a large range of websites and it can also block Youtube ads!

How do I stop all online ads on Firefox?

You can stop all online ads by downloading our Firefox ad blocker extension. Additionally our extension also blocks cookies, popups & other harmful trackers!

What is the safest free ad blocker?

At Ghostery, we offer one of the safest free ad blockers. Our ad blockers are easy to download and use, so you can browse the web as safely as possible!

What is the best ad blocker for Firefox?

Ghostery’s ad blocker for Firefox is one of the best ad blockers currently on the market. Our ad blocker is safe, effective and free to use. 

Does Ghostery have a feature to bypass consent dialogs?

The "Never-Consent" feature in Ghostery not only bypasses consent dialogs but also automatically selects optimal privacy settings for the user. This careful balancing act ensures enhanced privacy while minimizing website breakage, clearly signaling to publishers that Ghostery users prioritize privacy but still desire a functional browsing experience.

Is Ghostery available on mobile versions of Firefox?

Yes, Ghostery is available on mobile versions of Firefox. You can download and install the Ghostery free Firefox extension from the Mozilla add-ons page for Firefox on Android devices. Additionally, Ghostery has developed a privacy-focused browser based on Firefox for Android, providing enhanced security and privacy settings by default. This means you can use either the Ghostery tracker blocker on the regular Firefox mobile browser or opt for the dedicated Ghostery Private Browser.

Do I have to pay for Ghostery?

Ghostery is free to use for everyone. The Ghostery privacy protection tool provides core features like ad blocking, anti tracking, and with "Never-Consent" you not only bypass cookie consent dialogs but also optimal privacy settings are automatically selected for the user.

How does Ghostery protect my privacy on Firefox?

The free Firefox extension Ghostery enhances privacy on Firefox browser by blocking trackers and ads, which prevents third-party data collection and improves browsing speed. It also offers automatic cookie management to control and minimize personal data leakage. These features collectively safeguard user privacy, making browsing more secure, efficient and seamless.

Can I customize Ghostery's blocking settings in Firefox?

Yes, you can customize Ghostery's blocking settings in Firefox. Ghostery recommends using default settings in the Firefox ad blocker but it allows you to adjust its features to suit your preferences. You can choose to block all trackers and ads by default, or you can fine-tune the settings to allow certain types of trackers or ads from websites you trust or want to support. This level of customization provides flexibility in balancing privacy, site functionality, and support for web services you value.

How does Ghostery improve browsing speed on Firefox?

Ghostery improves browsing speed on Firefox primarily by blocking trackers and ads, which often consume data and increase page load times. With Ghostery, your pages load almost 2x faster on average, and you use 25% less energy. This streamlined approach not only enhances privacy but also significantly speeds up the overall browsing experience, making websites load faster and operate more smoothly.

Still have questions?

If there is anything you miss in Ghostery or have any questions, please drop a line to We’re happy to talk to you anytime.