Stable signalNo paid features detectedMedium-risk permissions

Microsoft Defender Browser Protection

Protect yourself against online threats, like phishing and malicious websites, with real-time protection from Microsoft.

Users2MCurrent public install base

Rating4.2Store average score

Reviews628Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Microsoft Defender Browser Protection Media preview

3 assets

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User growth trend

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User Growth Over Time

Rating trend

7-day rating trend

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7-day rating change

Start

4.15

Latest

4.15

7-day rating change

0.00

2026年7月13日2026年7月19日

Growth overview

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1-day growthFlat

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7-day growthFlat

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Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.664

ManifestV3

Size240KiB

Languages1English (United States)

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

Currently supported region(s): United States

The Microsoft Defender Browser Protection extension helps protect you against online threats, such as links in phishing emails and websites designed to trick you into downloading and installing malicious software that can harm your computer.

If you click a malicious link in an email or navigate to a site designed to trick you into disclosing financial, personal or other sensitive information, or a website that hosts malware, Microsoft Defender Browser Protection will check it against a constantly updated list of malicious URLs known to Microsoft.

If the malicious link matches one on the list, Microsoft Defender Browser Protection will show a red warning screen letting you know that the web page you are about to visit is known to be harmful, giving you a clear path back to safety with one click.

Privacy statement: https://privacy.microsoft.com/en-us/privacystatement

• Continuously updated list of reported harmful sites

Reviews

Recent review snapshot

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Store average score4.2Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average4.0Average computed only from synced review bodies below

Reviews with text267Synced review bodies

Total ratings / reviews628Chrome Web Store public rating/review count

Store average score: 4.2. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

155

4★

3★

2★

1★

Владислав2018年4月18日

Кто бы что не говорил, Microsoft лучшие!

Anonymous user2018年4月18日

When installed to chromebook (chromeos) it is marked as corrupted and repair impossible. Cannot be activated Update 04/21/2018: Apparently a swift update from Microsoft solved the problem. They probably forgot to ask permission from the user part :) It works now

Viktor Kalmar2018年4月18日

Thanks :)

invictus2018年4月18日

good

Ninja2018年4月18日

Good initiative. Only thing that makes me worry is it uses 25k-30k RAM which is a bit on the higher side.

personlab2018年4月18日

пока трудно сказать что либо, но заочно поставил 5 баллов новинке

Hữu Thuận Hồ2018年4月18日

Good extension. I hope that Microsoft can add Vietnamese language to the new version

Julio Cesar2018年4月18日

Testando...

Sergey Artemov2018年4月18日

вроде работает

Ahmad Yahya2018年4月18日

thank you

Showing 267 results

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AI product read

Real-time URL reputation checking using Microsoft SmartScreen to block phishing and malware sites before they load

Protects users from visiting phishing sites that steal personal/financial information and sites that distribute malware, by intercepting navigation and showing a red warning page when a malicious URL is detected

1. User installs extension (no account needed, works immediately) 2. Extension monitors all web navigations via webNavigation.onBeforeNavigate 3. On each navigation, URL is first checked against a built-in TopSites safe list 4. If not a top site, the URL is sent to Microsoft SmartScreen API with a hashed payload 5. SmartScreen responds with allow/block verdict 6. If malicious/phishing: user sees a red warning page with threat explanation 7. User can choose 'Back to safety' (goes to new tab), 'Continue to site' (temporary bypass for 60s), or 'Report' the URL 8. Protection toggle in popup allows enabling/disabling the feature

Target users: General Chrome users seeking phishing and malware protection / Enterprise users managed via Chrome policies / Users in the United States (primary supported region)

Extension source is minified/single-line JS, making line-specific analysis limited
TopSites.js is 694KB — a large safe-domains list not fully inspected
Binary .htm warning page not inspected for hidden features

Monetization

No paid features detected

No payment platforms, no subscription/billing code, no premium tiers, no upgrade prompts, and no feature gating. The extension is a free Microsoft security tool. Keyword hits for 'pro' are false positives from the word 'protection'; 'premium' in TopSites.js is a domain name in a safe-sites list.

Confidence: 98
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension has no login UI, no OAuth flows, no credential prompts, and no account creation. All user settings (just a protection toggle and instance ID) are stored locally via chrome.storage.local. API calls to Microsoft SmartScreen use a hardcoded authId with a computed hash, not user credentials.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：tabs、storage
同时具备浏览数据与站点访问能力

Publisher

Microsoft Corporation

Email: [email protected]
Phone: +14259431187
Address: One Microsoft Way Redmond, WA 98052-8300 US

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