This is a pretty good extension. However, I have had issues where firefox loses all network connection if loading pages with a lot of media, or scrubbing youtube videos fast. I now, after at least a year tried disabling the malwarebytes extension and that fixed the issue i was having.

Hopefully this is something you can solve in future updates.

Broken cookie banners on multiple sites.

I wanted to report that this extension causes cookie banners to malfunction on various websites. The banners disappear after just a few seconds, without giving users enough time to manage their consent. I am experiencing this major issue also on my own WordPress site, which uses the Cookie Complianz plugin.

Since these banners are configured to automatically reject cookies when closed (keeping them disabled until explicit user consent), certain website functionalities break entirely. The only workaround is to disable the extension's ad/tracker protection, which the vast majority of users obviously won't do.

UPDATE - Reply to your answer:

Thanks for the reply, but there is a misunderstanding here.

I am using Complianz, not CookieYes (the link provided in your response belongs to a different plugin).

Complianz is strictly configured for prior consent (opt-in). This means that if Malwarebytes blocks cookieblocker.min.css, it doesn't cause trackers to load; instead, it completely breaks the banner layout.

The real issue is that the user is physically prevented from interacting with the banner because it vanishes immediately. If a user actually wants to consent to load a YouTube video, a Google Map, or a social widget, they simply cannot do it because the interface is broken by the extension.

This is a False Positive purely based on the filename string. Please consider forwarding this to the development team so they can whitelist or fix this specific filter. Thank you.

What an utter shambles Malwarebytes are with their 3.1.5 version. It broke the functionality of Firefox Browser's right click, "Save Image as", feature. Malwarebytes pushed version 3.1.5 on me on the 9th April 2026, around two weeks after version 3.1.5 was released.

The absolute same day they had to bring out version 3.1.6 to fix the disaster of version 3.1.5. And what version 3.1.6 is according to Firefox is an, "Automatic rollback based on version [3.1.3]."

Sort yourself out Malwarebytes team, clearly better tech staff and Senior management are needed.

I love this app but just recently it wont let me save files using the "Save as" feature in the context menu or to copy files. In the downloads bar it lists the file as being cancelled. It will download the file if I select the "retry" in the downloads bar but thats an extra step.

Im running Windows 10 on a Surface pro 7, and there were no issues the day previous. I confirmed the App was the problem by turning it off. The only other app i have running is Ublock.

Again, love the program and the App!

EDIT: The update worked and fixed my issue! Thank you very much for the quick response. 5 stars!

Hello dear developers of Malwarebytes Guard,
I installed your Malwarebytes Guard extension on Android, but I can’t configure it. I want website tracking to be blocked, but not ads. I opened the extension settings, went to “All Protection Settings,” and tried to uncheck the ads option, but the checkbox won’t turn off. Please fix this issue.

I'm more or less satisfied, except that sometimes it doesn't detect that I have a premium plan and the ad blocking also sometimes doesn't work.

Plutôt efficace, ne demande pas forcement d'avoir un antivirus de la même société pour fonctionné.

Bloquera pas mal de petite chose notamment les pubs et se montre flexible et facile a prendre en mains.

Une extension a utilisé systématiquement.

It does its job well, but you seriously need to cool it with the popups/notifications!! I have them all turned off in settings, but I'm still getting several popups per session, I've just gone and disabled the whole addon now. It's doing my head in.

Every time you open a Google page (which is unfortunately needed for my work) with this extension, things pop up on screen trying to verify my Google account. It won't even let me log on websites with my google account anymore. Malwarebytes is a good malware protection with good plans for everyone, but this extension is simply a bad tradeoff between protection and basic daily usability. Until it updates to give user more settings and control over the extension I can't recommend it to anyone.

It is good but really REALLY slows down certain pages with no option to temporarily pause it when interfering in some pages such as those dealing with AI prompts and image creations. If it was not for that I would rate it higher. The lag it is causing me currently is so bad that it is conflicting with Grammarly which I need since I am dyslexic with numb fingers from Chemo. I don't need the conflict and I am very knowledgeable on how to keep myself safe online and my browser as clean as possible. So in my case I have uninstalled it for now until there are improvements when it comes to browsers that also have other addons installed and how they play together.

só posso dizer que é excelente

Pop-Ups from a pop-up blocker... every few minutes!!! And you can't close them!!!!!!!!!!!!
No No No

aggravating doesn't come close to what I feel...

I even tried their
"help.malwarebytes.com/hc/en-us/articles/31589256837403-Customize-Browser-Guard-from-the-Settings-screen"
workaround, I don't even have that options at all! None of them!

I close more pop-ups with this extension than without it!

Absolutely invaluable extension. I use Malwarebytes Pro on my desktop and this extension on all my browsers. It does flag some places that are ad based, and it's easy to back out of those, or if you know the site is safe, proceed. Just a great tool.