By: Emsisoft
Blocks bad websites and prevents phishing without tracking your browsing activity.
Features & Capabilities
User Growth & Download Statistics
- By:
- Emsisoft
- Daily users:
- 5,004 5
- Rating:
- 4.61 (109)
- Version:
- 2023.8.0.56 Last updated: 2023-08-16
- Version code:
- 5610119
- Creation date:
- 2018-12-16
- Risk:
- High risk impact Low risk likelihood
- Permissions:
- *://*/*
- https://alomar.emsisoft.com/*
- storage
- tabs
- webRequest
- webRequestBlocking
- *://*/*
- Size:
- 105.01KB
- Email:
- su*****@emsisoft.com
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-21
- Compare stats and ranking:
- Emsisoft Browser Security vs Browser Security Plus
- Emsisoft Browser Security vs Ashampoo Browser Security
- Emsisoft Browser Security vs Privacy Essentials
Ranking
Other platforms
For Developers
Contact the developer
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User Reviews
Pros
- Effectively blocks malicious and virus-infected websites.
- Does not collect or sell user data to third parties.
- Reliable and helpful in protecting against infections and malware.
- Recommended by users to friends, family, and clients.
- Good customer support and responsive developers.
Cons
- Can slow down website loading times after recent updates.
- Causes issues with pages not loading properly in Firefox.
- Lack of a quick and easy forum or channel for reporting problems.
- Some recent performance regressions that affect browsing experience.
Recent reviews
by Fi*****, 2025-06-24
by St*****, 2025-03-28
by Fi*****, 2024-09-15
Is Emsisoft Browser Security 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.
Emsisoft Browser Security requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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- High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
- Low ******* ****** ** *** ********* ******** ************
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.
Emsisoft Browser Security has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Extension Guard
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