The best ad blockers for Firefox in 2026
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Using an ad blocker on Firefox is a total game-changer. Not only do you finally get rid of those annoying ads that clutter up your favorite sites, but you also get a big boost in privacy and security. The best ad blockers for Firefox will help keep your personal data safe from trackers and shady scripts, so you can browse with peace of mind.
Ads aren’t just a minor inconvenience – they can slow down your browsing and eat up your mobile data, especially on your phone. Blocking ads means pages load faster, you use less data, and you’re less likely to run into malicious pop-ups or scammy links. It’s a simple way to make the internet a lot more enjoyable.
The best ad blockers do more than just block banners and pop-ups, though. Many of them can mute cookie consent pop-ups, silence newsletter notifications, and block video ads, while some even offer a VPN for extra privacy. I tested a bunch of Firefox ad blockers and picked out the top 4 that really impressed me. Keep reading to see which ones made the cut.
Best ad blockers for Firefox in 2026 – shortlist
- Surfshark CleanWeb – well-performing Firefox extension
- NordVPN Threat Protection – effective and reliable ad blocker for Firefox
- Proton VPN NetShield – good ad blocker and fast VPN duo
- Malwarebytes Browser Guard – free Firefox ad blocker
The Cybernews in-house research team and expert writers work together to regularly and thoroughly test ad blockers. We use a variety of testing methods to ensure our recommendations are fact-checked and relevant. Find out how we test and evaluate ad blockers.
Why do you need to block ads on your Firefox browser?
If you’re frustrated with intrusive ads, privacy concerns, and slow loading times while using Firefox, you should consider installing an ad blocker. Here are some key benefits:
- Blocks malicious ads. Protects from ads that can infect your computer with malware or track your browsing invisibly.
- Prevents tracking. Blocks tracking cookies that advertisers use to build profiles and target you with invasive ads.
- Limits data collection. Reduces the amount of data websites and advertisers can collect about your browsing habits.
- Faster loading times. Blocks ads that slow down websites, especially on mobile devices with limited data and battery life.
- Reduced data usage. Not loading unnecessary ads saves you data.
- Makes the browsing experience more enjoyable. Removes distracting and annoying ads, letting you focus on the content you want to see.
- Improved battery life. Blocking ads on laptops and mobile devices can save battery power by reducing resource usage.
The best Firefox ad blockers – detailed list
Every ad blocker on my list is a trusted choice for Firefox. They effectively remove all types of unwanted content, safeguard your privacy, and deliver a smooth, enjoyable browsing experience.
1. Surfshark CleanWeb – top-performing Firefox extension
| Rating: | |
| Free version: | Yes (7-day free trial) |
| Supported platforms: | Chrome, Firefox, Edge, Windows, macOS, Linux, Android, iOS, FireTV, Android TV |
| Customer support: | 24/7 live chat, email, guides and articles, FAQs |
In my experience, Surfshark CleanWeb is an effective tool with close-to-perfect ad-blocking capabilities. It efficiently removes pop-ups, banners, video ads, cookie notices, and trackers. It’s also one of the most affordable premium VPNs on the market – and I definitely appreciated the added privacy of having VPN features included. You can get it for even less with a Surfshark promo code: OFFCN, making it the most affordable and quality option on this list.
Features. Surfshark offers two versions of its ad-blocking feature: CleanWeb, which is integrated into its VPN app, and CleanWeb 2.0, which is a browser extension that works without depending on a VPN connection.
What stood out to me about CleanWeb was its private search engine – it really helped keep trackers away from my browsing experience. Seeing instant alerts about potential data leaks and warnings about risky websites was also helpful. When I tried the Surfshark One bundle, I enjoyed removing malware, using Safe Search, and protecting my data with the built-in VPN – all in one place.
The malware protection deserves a special mention too. CleanWeb quickly flagged and blocked malicious ads before they had a chance to cause trouble, which gave me extra peace of mind while browsing.
Test results. When testing Surfshark CleanWeb 2.0 with Adblock Tester on Windows, it managed to block almost everything in the Firefox browser except the Google Analytics tools, GIFs, static images, and error monitoring, giving it an excellent score of 84/100 points.
The Can You Block It test showed similar results – there were some issues on the macOS app, but the Firefox extension performed nearly perfect.
Pricing. SurfShark CleanWeb comes with a friendly price that starts at $1.99/month. You can also try it out with a 7-day free trial.
2. NordVPN Threat Protection – reliable and effective Firefox ad blocker
| Rating: | |
| Free version: | Yes (3-day free trial on Android) |
| Supported platforms: | Windows, macOS, Linux, Android, iOS, Chrome, Firefox, and Edge |
| Customer support: | 24/7 live chat, email, guides and articles, FAQs |
NordVPN won the second spot on my list for its highly efficient and reliable Firefox ad blocker – Threat Protection. It’s impressively efficient at blocking most types of ads, pop-ups, and trackers. When I tested it, it easily handled everything from malicious banners to autoplay video ads and noticeably improved my browsing speed and privacy. While it didn’t catch every single YouTube ad, I still found daily browsing much cleaner and safer overall.
Features. What impressed me about NordVPN was how seamless and effective its Threat Protection feature is at blocking ads, trackers, and unsafe domains while you’re connected to a NordVPN server. For instance, the URL trimming tool removes tracking parameters attached to URL links. Meanwhile, the ad-blocking feature prevents unwanted ads from displaying, reducing loading time.
When I tried NordVPN Threat Protection on Firefox, it filtered out the most annoying ads and noticeably reduced tracking, all through simple DNS filtering. It’s lightweight, works across major platforms and browsers, and is a solid choice if you want basic privacy and ad-blocking bundled with your VPN.
It was great to see that NordVPN now offers an upgraded version called Threat Protection Pro. This newer tool goes beyond basic filtering and works even when you’re not connected to a VPN server. It scans your downloads for malware, blocks phishing sites and malicious URLs in real-time, and uses machine learning to spot new threats.
I especially appreciated the extra control – like turning specific features on or off – and the dashboard that shows exactly what’s been blocked. The main difference I noticed is that Threat Protection Pro acts more like a standalone security feature, almost a full antivirus and anti-phishing suite, compared to the standard Threat Protection – a lighter, DNS-based blocker that requires an active VPN connection.
Test results. NordVPN Threat Protection is a high-performing tool across different platforms and browsers. When testing Threat Protection on a Windows computer using the AdBlock Tester, it scored 57/100 points. It missed some elements but still blocked most of the contextual advertising – the most common form of ads and tracking on the internet.
The Can You Block It test also went almost flawlessly. Only a direct link ad slipped through, which didn’t impact my overall browsing experience.
Pricing. You can try NordVPN Threat Protection for free with a 3-day trial. Then, you can upgrade to your chosen plan, starting at $3.09/month.
3. Proton VPN NetShield – good ad blocker with several layers of protection
| Rating: | |
| Free version: | No (only the VPN has a free version) |
| Supported platforms: | Chrome, Firefox, Android, iOS, Linux, macOS, and Windows |
| Customer support: | 24/7 live chat, email, knowledge base, FAQs |
In my experience, Proton VPN’s NetShield is a solid choice if you want more than just basic ad blocking. When I tested it, I found it blocked most banner ads and trackers effectively. I also appreciated that it adds a layer of malware protection and DNS leak prevention. NetShield works across your entire device, not just your browser, and you can easily adjust its protection level depending on your needs.
Features. NetShield gives you full control over the level of protection you need. I could easily toggle ad blocking on and off with just one click, or leave only the malware detection active. Of course, there's also a handy option that allows you to block malware, ads, and trackers simultaneously, especially since NetShield works system-wide – not just in browsers – which made my entire device feel more secure.
NetShield is included right in the Proton VPN app, so you don’t need extra installations or browser extensions. When I tried switching between different protection modes, it was quick and intuitive. I also found seeing real-time stats on how many ads and threats were being blocked very useful.
If you’re worried about VPNs slowing down your connection, the provider’s VPN Accelerator feature fixed it. Even with both the VPN and NetShield running, my speeds stayed fast and stable – perfect for streaming or downloading without interruption. Overall, NetShield gave me peace of mind with flexible, device-wide protection and no noticeable drop in performance.
Test results. Similar to NordVPN Threat Protection, when I tested Proton VPN’s NetShield, I noticed it demonstrated average performance on my Windows device. NetShield scored 57/100 points on Firefox browser with the AdBlock Tester. The provider mostly missed the Google Analytics tools, GIFs, static images, and error monitoring.
Pricing. While Proton VPN has a free version, NetShield is only available with its premium subscription starting at $2.99/month. There is no free trial, but it's still a fair deal since it allows for 10 simultaneous connections and offers a 30-day money-back guarantee.
4. Malwarebytes Browser Guard – reliable Firefox ad blocker with free version
| Rating: | |
| Free version: | Yes |
| Supported platforms: | Windows, Android, macOS, Chrome, Firefox, Safari, and Edge |
| Customer support: | AI chatbot, live agents, guides and articles, FAQs |
Malwarebytes Browser Guard is a great free choice if you want a simple solution for blocking ads, pop-ups, and trackers on Firefox. It did a great job stopping annoying ads and even flagged scam sites and cryptocurrency miners during my tests. I also liked that it sped up page load times and worked smoothly alongside other antivirus tools without slowing down my browser. You can get it as a free extension that adds an extra layer of browsing protection or pair it with Malwarebytes antivirus.
Features. Malwarebytes Browser Guard has a strong focus on keeping you safe from phishing scams and malware while browsing. When I tried it on checkout pages, the Advanced Skimmer Protection gave me extra peace of mind by shielding my bank card details from sneaky skimmers. It was great to see how easy it was to customize what gets blocked or allowed with the whitelisting feature – giving me full control over ads, trackers, and potential threats without feeling restricted.
Test results. I tested Malwarebytes Browser Guard on Firefox using the latest browser version on my Windows computer and was impressed to see it earn a 100/100 on AdBlock Tester. It blocked almost every type of ad and tracker I encountered, making my browsing experience noticeably cleaner and faster. While previous tests showed it missing some GIFs, static images, and direct link ads, my recent testing revealed it handled those much better, including ads on sites like Facebook.
That said, I did notice its performance varied a bit on streaming platforms like Hulu and Twitch, and it wasn’t always perfect with ads on games or Amazon Prime. Still, for everyday web browsing and basic ad blocking, I found Malwarebytes Browser Guard to be a reliable and effective free extension that significantly cuts down on distractions and tracking.
Pricing. Malwarebytes Browser Guard is free to use. However, if you want premium features with the Malwarebytes antivirus plan, you can opt for a Standard 1-year subscription plan, which costs $44.99/year or $3.75/month. There's also a 60-day money-back guarantee, and you don't need a credit card to try the ad-blocker for free.
Best ad blockers for Firefox compared
Below is a quick comparison table of the best ad blockers for Firefox in 2026. I highlighted the types of ads they effectively block, testing scores, pricing, and additional features to help you find the ideal fit for your needs.
| Ranking | Free version | Types of ads blocked | Adblocker tester score | Cookie removal | YouTube ad blocking | Price | Comes with | |
| Surfshark CleanWeb | Yes (free 7-day trial) | Text and video ads, trackers, banners, cookie notices, malware, and phishing attempts | 84/100 | Yes | Yes, limited | $1.99/month | VPN or VPN+antivirus bundle | |
| NordVPN Threat Protection | Yes (free 3-day trial) | Text and video ads, trackers, malware, and phishing attempts | 57/100 | Yes | Yes, limited | $3.09/month | VPN service | |
| Proton VPN NetShield | No (only the VPN has a free version) | Ads, trackers, malware threats | 57/100 | Yes | Yes, limited | $3.59/month | VPN service | |
| Malwarebytes Browser Guard | Yes | Basic pop-ups, banners, and some trackers | 100/100 | Yes | Yes, limited | $3.75/month | Add-on or antivirus |
How we selected and tested Firefox ad blockers
In this review, I wanted to give you solutions you can trust, so I didn’t just rely on provider claims. Together with the Cybernews research team, I put each Firefox ad blocker through a series of real-world tests, following a process modeled after industry standards and Cybernews’ own methodology.
| Providers reviewed | 13 |
| Operating systems used | Windows, macOS, Android, and iOS |
| Independent testing tools | AdBlock Tester, Can You Block It, and Cover Your Tracks |
| Features tested | Block rate on ads, pop-ups, trackers, cookie notices and additional features like URL trimming, malware protection, customization modes, and more |
Here’s how exactly I approached it:
- Independent testing (30%). I ran multiple rounds of tests using tools like Adblock Tester and Can You Block It on each ad blocker. This helped me see what types of ads, pop-ups, and trackers each extension could actually handle, not just what they promised. AdBlock Tester provided a clear score (out of 100) to measure how well each blocker handled banners, pop-ups, analytics, and more, while Can You Block It helped me see exactly which ad types (like video, banners, native, and direct link ads) were blocked or slipped through. Cover Your Tracks checked how well the blockers stopped tracking ads, invisible trackers, and fingerprinting. I also visited popular sites like YouTube, Facebook, and major news outlets to see how each blocker performed in daily browsing.
- Platform compatibility (25%). I compared how each tool performed not just on Firefox, but across different platforms (Windows, macOS, and mobile when available). I paid close attention to whether the blockers worked system-wide or just in the browser, and if they could handle streaming platforms, games, and social media.
- Privacy (15%). Before recommending any ad blocker, I reviewed their privacy policies, checked for any history of data leaks, and ensured none of them collected unnecessary personal data. Only those with spotless reputations made the list.
- Features and customization options (10%). I looked for features that made a real difference – like URL trimming, whitelisting, adjustable blocking levels, and bundled security options. I tested these features myself to see if they were genuinely useful or just marketing fluff.
- Ease of use (10%). I set up each ad blocker from scratch, noting how easy it was to install, configure, and use. I also checked how beginner-friendly the interfaces were and whether there was clear guidance for new users.
- Customer support (5%). I made sure each Firefox ad blocker provided reliable and effective customer support, whether that’d be a 24/7 live chat, a community forum, or email ticket support. I picked the providers with fast and informative customer help provided.
- Price and value (5%). I weighed what you get for free versus paid versions, making sure the price matched the performance and features.
This step-by-step, hands-on approach means every ad blocker on this list was tested in the real world, not just in theory. I aimed for transparency, so you know exactly how I made my picks and what you can expect from each tool.
Is Firefox built-in ad blocker good enough?
Mozilla Firefox offers a decent built-in content blocker. The browser-native feature can block two types of content – trackers and cookies. Its most notable feature is Enhanced Tracking Protection, which effectively blocks various trackers and malware.
While tracking protection is designed to improve privacy, it can get in the way of user experience. From time to time, Firefox users who enable tracking protection can encounter broken or strange-looking websites. That is because, as Mozilla explains it, Firefox must also block the content to block the trackers. Websites often conceal trackers in login fields, forms, comments, videos, and so on. However, Mozilla is constantly working on improving its tracker protection.
Firefox also lets you get rid of the cookies. It’s done by using Total Cookie Protection, which confines cookies to the site that created them, effectively preventing cookie sharing with tracking companies.
If your goal is to remove all types of ads – including banners, pop-ups, video ads, and adware – you still need a dedicated ad blocker extension. Top third-party ad blockers like Surfshark CleanWeb provide much broader ad removal, additional malware protection, and more customization options than Firefox’s built-in tools.
How to turn off the ad blocker on Mozilla Firefox
The content blocker may make the site look broken when it prevents ads and other content featuring trackers from loading. The best way to fix that is to turn off the content blocker on the broken website. This method also works as a whitelisting feature. The process is quite easy:
- Click on the shield icon to the left of the address bar
- Then, toggle the switch at the top of the panel
- That's it – the website is now whitelisted
Are free ad blockers for Firefox safe?
The short answer is no, free ad blockers for Firefox aren't safe. While we're all tempted by free services, the truth is that nothing is really free. On the surface, you may not see the difference between some free and paid providers, but free ad blockers come with risks you should know about.
First, free ad blockers don't necessarily block all ads all of the time. We tested a handful of free providers and noticed a mediocre performance. Missed pop-ups, the inability to block cookie consent notifications, and Google Analytics tools are just the tip of the iceberg.
Free ad blockers often fail, but not only at blocking ads – the security they offer needs to be fixed, too. Remember the Nano Ad blocker breach back in 2020? The new developers purposely tampered with user Instagram accounts after injecting malicious code into the ad blocker, which had more than 200,000 downloads.
Remember that developing an ad blocker is not simple or cheap. The process requires resources. Thus, providers are forced to monetize their products somehow. Reputable providers will collect a competitive fee and ensure a top-quality product. Free providers, on the other hand, may track your online activity and sell this data to third parties.
So, is a free ad blocker worth the risk? My answer is – definitely not. Since many trustworthy ad blockers on the market do not break the bank and offer well-rounded protection for your device, taking a risk with a free ad blocker is simply not worth it.
Conclusion
There are plenty of Firefox ad blockers out there, ranging from free extensions to paid apps, which can make choosing the right one feel overwhelming. Free options are tempting but often come with limitations, whereas paid solutions typically offer stronger blocking, better privacy protection, and more responsive customer support.
Ultimately, the best choice depends on your needs and budget. A powerful Firefox ad blocker should handle all kinds of ads – including banners, pop-ups, cookie notices, and even phishing attempts – while maintaining smooth browsing performance.
Based on my testing and current industry consensus, Surfshark CleanWeb is the top pick for most Firefox users in 2026. It combines highly effective ad and tracker blocking with the added benefit of a VPN, boosting your privacy and security without slowing down your browsing. Its user-friendly design and excellent cross-platform compatibility make it a reliable, budget-friendly shield against online distractions and threats.
More Ad blocker guides from Cybernews
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FAQ
How to get rid of ads on Firefox?
The best way to block ads on the Firefox browser is to use an ad blocker. Since free ad blockers are ridden with security risks, we recommend a reputable provider such as Surfshark CleanWeb. It is known for its security features and excellent ad-blocking capabilities.
How do I permanently block ads in Firefox?
The only way to permanently block ads in Firefox is to use an ad blocker constantly. Ad blockers can prevent ads from loading on the sites you visit. They can block trackers, pop-ups, cookie consent notifications, and malware.
How do I add exceptions to Enhanced Tracking Protection?
Adding exceptions to Enhanced Tracking Protection on Firefox is quite easy. Visit the page you want to exempt and click on the shield icon to the left of the address bar. Then, toggle the switch at the top of the panel. The site will reload, and the tracking protection will be off.
