By: Malwarebytes
Fast and safe browsing that protects your privacy. Block trackers, ads, phishing, and malicious content—so you stay secure and in control.
Features & Capabilities
User Growth & Download Statistics
- By:
- Malwarebytes
- Daily users:
- 449,154 -1,649
- Rating:
- 4.20 (921)
1 ratings
- Version:
- 3.2.1 Last updated: 2026-06-16
- Version code:
- 6301515
- Creation date:
- 2018-01-12
- Risk:
- Very high risk impact Low risk likelihood
- Permissions:
- Host permissions:
- <all_urls>
- <all_urls>
- Content scripts matches:
- browserguard.local
- *
- myaccount.google.com
- www.linkedin.com
- browserguard.local
- Size:
- 33.42MB
- Email:
- br*****@malwarebytes.com
- URLs:
- Website ,Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-18
- Compare stats and ranking:
- Malwarebytes Browser Guard vs Malwarebytes Browser Guard Beta
- Malwarebytes Browser Guard vs Browser Guard
- Malwarebytes Browser Guard vs BitGuard
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Permission Change History
2026-04-24: Version 3.1.6 → 3.1.7
Add Optional permissions: privacy
2026-04-10: Version 3.1.5 → 3.1.6
Remove Optional permissions: privacy
2026-04-09: Version 3.1.3 → 3.1.5
Add Optional permissions: privacy
2025-11-19: Version 3.1.0 → 3.1.1
Add Permissions: scripting
2025-05-05: Version 3.0.17 → 3.0.18
Add Optional permissions: clipboardRead clipboardWrite
2025-03-27: Version 2.6.27 → 3.0.14
Add Host permissions: <all_urls>
Add Permissions: declarativeNetRequest declarativeNetRequestFeedback activeTab
Remove Permissions: <all_urls>
2022-11-17: Version 2.5.4 → 2.5.5
Add Permissions: nativeMessaging
Remove Optional permissions: nativeMessaging
User Reviews
Pros
- Effectively blocks ads and unwanted content.
- Enhances online safety by blocking malware redirects and suspicious pages.
- Considered essential/invaluable by many users and highly recommended.
- Generally user-friendly and easy to use.
Cons
- Significant performance slowdowns and high memory/CPU usage.
- Intrusive, frequent pop-ups/notifications that are hard to close or disable.
- Limited user controls and configurability; difficulty pausing features or customizing behavior.
- Clipboard monitoring feature causes disruption and false positives, difficult to disable.
Recent reviews
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.
by Ru*****, 2026-06-02
by Fe*****, 2026-06-01
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.
Instead, users just continue browsing without paying attention to the quick disappearance of the banner, completely unaware that the extension has rejected cookies on their behalf and locked them out of some site features.
by Gi*****, 2026-05-22
Is Malwarebytes Browser Guard Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
Malwarebytes Browser Guard requires a lot of sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
Malwarebytes Browser Guard has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
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