See every browser extension in your company. Block the risky ones.
Extension Auditor inventories every extension on Chrome, Edge and Brave, scores its risk from permissions, code and publisher trust, and lets you allow, warn or block it from one dashboard.

Find & Analyse Browser Extensions
Search for any Browser extension and instantly see key details like permissions, risks, and user ratings. Stay informed before you install.
Recently Found Malicious Extensions
Extensions our review flagged as malicious or carrying critical-severity findings — click a row for permissions, risk score, and code analysis.
See it. Assess it. Control it.
- 01
Deploy or connect
Deploy the companion agent to Chrome, Edge and Brave, or connect Google Workspace / Microsoft Entra.
- 02
See every extension
See every installed extension with a risk score from permissions, code and publisher trust.
- 03
Enforce your policy
Enforce allow / warn / block policies and get alerted when an extension changes.
Why Extension Auditor?
Get visibility and control over browser extensions across your organization. Identify risks, enforce policies, and protect your workforce.
Research-Backed
Analysis
Our risk models are built on 30+ peer-reviewed security papers covering extension threats, permission abuse, and supply chain attacks.
Not heuristics. Not guesswork. Real academic research translated into actionable risk scores.
Catch Changes Before Incidents
We monitor 11 event types every 2 hours—permission changes, ownership transfers, visibility shifts, and more.
Get alerted the moment an approved extension turns risky, not after it's already exfiltrated data.
Built for SMB and Enterprise Security Teams
Connect Google Workspace or Microsoft 365 in minutes. Alerts flow to Email, In-app Notifications, Slack, Teams, or your SIEM via webhook. Full REST API for automation.
1,919,407+ Extensions Analyzed
The most comprehensive Chrome extension security database. Real threat intelligence from scanning the entire Chrome Web Store—not just the extensions you ask about.
Integrations that work with your stack
Connect with the tools and platforms your team already uses.
Built on published security research.
Risk models grounded in peer-reviewed work on extension threat models, permission abuse and supply-chain attacks, applied to every extension we track through publisher reputation, permission history and reviewer graphs.
Get AccessExtensions tracked across Chrome, Edge and Firefox
0k+0k+
Active on the stores today
0k+0k+
Publishers profiled
0k+0k+
Active extensions flagged high or critical risk
Catch malicious updates
Extensions you approved can turn malicious through an update. Extension Auditor re-scans every version and alerts you when an extension changes.
Example PDF Tool 2.3.0 → 2.3.1 adds cookies, webRequest and access to all URLs. New permissions are a reason to investigate.
Example PDF Tool: manifest changes
Illustrative manifest diff between two example versions.
1 changed file detected
Showing diff for manifest.json
From manual lists to live protection
Without Extension Auditor
- Spreadsheet allowlists
- No idea what's installed
- Updates go unreviewed
- Blocking means a GPO push
With Extension Auditor
- Live inventory per browser and user
- Risk score per extension
- Every update re-scanned
- Policy enforced by the agent
What our users say
Read moreI’ve been using this extension for a bit and it’s given me a much better idea of what my installed extensions are actually doing.
Kirill Galushko
★★★★★ ·
Read moreExtension Auditor gives a much clearer picture of what my browser extensions are actually allowed to do. The permission and host-access checks are useful for spotting extensions with broader access than expected, while the activity logs make it easier to see changes over time. The privacy score and quick settings are a nice bonus too. It feels like a practical security checkup for Chrome.
Atiqur Islam
★★★★★ ·
Read moreI like having a quick way to see what my installed extensions are actually allowed to do. The permission and host access checks make it easier to spot anything that seems unnecessarily broad. The activity log is useful for keeping track of changes over time, while the privacy controls give me a simple way to tighten up browser settings when needed.
Shafin Islam
★★★★★ ·
Read moreI tested Extension Auditor by scanning my installed extensions, and it gave me a clear overview of their permissions and risk levels I liked the detailed breakdown for each extension, especially the host permissions and browser controls, although the security scores can feel quite strict for some extensions.
Kareem Abdelaleem
★★★★★ ·
Read moreI’ve been using Extension Auditor to get a better idea of what my browser extensions are actually doing, and it gives me a much clearer sense of what needs attention. I especially like being able to spot risky permissions and review activity without sending everything to some external service. It feels more like a practical security checkup than another complicated browser tool.
Ezabul Mia
★★★★★ ·
Read moreThe permission analysis is the part I’d probably check first. An extension asking for broad access can be easy to overlook, so having a place that explains what those permissions actually mean makes the decision to keep or remove an extension feel more informed.
Salam Mia
★★★★★ ·
Read moreThis extension helps me review and understand the security risks of Chrome extensions by analyzing their permissions and potential security findings. I like that it clearly separates browser, web, and host permissions and explains why each permission may be risky. The risk ratings also give me a quick way to identify extensions that deserve a closer look. Overall, it’s a useful tool for anyone who cares about browser security and privacy.Thanks to the developer for creating and maintaining this helpful extension
abdelaleem mohamed
★★★★★ ·
Read moreIt flags sneaky extensions that tries to peek on my bank websites.The risk board showed me which add on was asking for too much dangerous access.I loves checking update history when tools change their permissions behind back..Simple switches help turn off website trackers and wipe out nasty cookies fast.
Asifur Rahman
★★★★★ ·
Read moreWhat a tool this is turning out to be it helps me scan extensions before i install them , it also allows me to audit the installed extensions , and it manages , monitors and secures my browser environment . Some of its key features include extension manager, extension activity logs and privacy settings manager . i love it and i have also recommended this to my friends
Oyagi Akuma
★★★★★ ·
Read moreExtension Auditor is an essential security tool to scan and audit browser extensions pre and post installation. It analyzes permissions, manifest files and risky host access locally on your device, with real-time activity logs tracking installs, updates and permission changes. The privacy dashboard gives security scores and quick toggles to harden browser settings, great for security practitioners and privacy-focused users.
S2006920 STUDENT
★★★★★ ·
Read moreDid not expect to check permissions this often. Now every new extension gets scanned before it stays. The dangerous combinations view flagged two I would have trusted. I only open it every few weeks, but the logs tab already saved me once after a silent permission change. Exported that one to a text file for later.
kk ss
★★★★★ ·
Read moreInterfaccia pulita e ricca di funzioni per il monitoraggio delle estensioni. Indispensabile.
Alessandro Saeli
★★★★★ ·
Read moreI’ve been using this extension for a bit and it’s given me a much better idea of what my installed extensions are actually doing.
Kirill Galushko
★★★★★ ·
Read moreExtension Auditor gives a much clearer picture of what my browser extensions are actually allowed to do. The permission and host-access checks are useful for spotting extensions with broader access than expected, while the activity logs make it easier to see changes over time. The privacy score and quick settings are a nice bonus too. It feels like a practical security checkup for Chrome.
Atiqur Islam
★★★★★ ·
Read moreI like having a quick way to see what my installed extensions are actually allowed to do. The permission and host access checks make it easier to spot anything that seems unnecessarily broad. The activity log is useful for keeping track of changes over time, while the privacy controls give me a simple way to tighten up browser settings when needed.
Shafin Islam
★★★★★ ·
Read moreI tested Extension Auditor by scanning my installed extensions, and it gave me a clear overview of their permissions and risk levels I liked the detailed breakdown for each extension, especially the host permissions and browser controls, although the security scores can feel quite strict for some extensions.
Kareem Abdelaleem
★★★★★ ·
Read moreI’ve been using Extension Auditor to get a better idea of what my browser extensions are actually doing, and it gives me a much clearer sense of what needs attention. I especially like being able to spot risky permissions and review activity without sending everything to some external service. It feels more like a practical security checkup than another complicated browser tool.
Ezabul Mia
★★★★★ ·
Read moreThe permission analysis is the part I’d probably check first. An extension asking for broad access can be easy to overlook, so having a place that explains what those permissions actually mean makes the decision to keep or remove an extension feel more informed.
Salam Mia
★★★★★ ·
Read moreThis extension helps me review and understand the security risks of Chrome extensions by analyzing their permissions and potential security findings. I like that it clearly separates browser, web, and host permissions and explains why each permission may be risky. The risk ratings also give me a quick way to identify extensions that deserve a closer look. Overall, it’s a useful tool for anyone who cares about browser security and privacy.Thanks to the developer for creating and maintaining this helpful extension
abdelaleem mohamed
★★★★★ ·
Read moreIt flags sneaky extensions that tries to peek on my bank websites.The risk board showed me which add on was asking for too much dangerous access.I loves checking update history when tools change their permissions behind back..Simple switches help turn off website trackers and wipe out nasty cookies fast.
Asifur Rahman
★★★★★ ·
Read moreWhat a tool this is turning out to be it helps me scan extensions before i install them , it also allows me to audit the installed extensions , and it manages , monitors and secures my browser environment . Some of its key features include extension manager, extension activity logs and privacy settings manager . i love it and i have also recommended this to my friends
Oyagi Akuma
★★★★★ ·
Read moreExtension Auditor is an essential security tool to scan and audit browser extensions pre and post installation. It analyzes permissions, manifest files and risky host access locally on your device, with real-time activity logs tracking installs, updates and permission changes. The privacy dashboard gives security scores and quick toggles to harden browser settings, great for security practitioners and privacy-focused users.
S2006920 STUDENT
★★★★★ ·
Read moreDid not expect to check permissions this often. Now every new extension gets scanned before it stays. The dangerous combinations view flagged two I would have trusted. I only open it every few weeks, but the logs tab already saved me once after a silent permission change. Exported that one to a text file for later.
kk ss
★★★★★ ·
Read moreInterfaccia pulita e ricca di funzioni per il monitoraggio delle estensioni. Indispensabile.
Alessandro Saeli
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Василий
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Котофей Мурмяукович
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
House Music
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Виктор
★★★★★ ·
Read more這是一款非常優秀的擴展,可以幫助用戶分析瀏覽器中安裝的所有插件所需的權限,並解釋獲取這些權限可能產生的風險。這樣我就可以清楚地看到哪些擴展是危險的。我便可以選擇繼續使用它或丟棄它。另外,介面也設計的非常漂亮。
消滅萬惡共匪
★★★★★ ·
Read more這是一款非常優秀的擴展,可以幫助用戶分析瀏覽器中安裝的所有插件所需的權限,並解釋獲取這些權限可能產生的風險。這樣我就可以清楚地看到哪些擴展是危險的。我便可以選擇繼續使用它或丟棄它。另外,介面也設計的非常漂亮。
美國威武
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Enter Hunter
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Дурдом Обыкновенный
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Enter
★★★★★ ·
Read moreSecurity of extensions does unfortunately not get enough attention. It is no easy task to determine whether an extension is safe or malicious. 5-star reviews are too often fake since Google does not verify them. Even fully functional extensions may quietly transmit user data without consent. Extension Auditor provides a detailed overview of the permissions requested by each extension, prioritizing them based on their level of invasiveness. It allows me to focus on the most invasive extensions first and helps me answer the question "Is the potential risk posed by this extension worth its functionality?" P.S. I love the update that it now also shows the permissions per extension as a table in addition to the grid overview + CSV download. When you have more than 100 extensions it makes it so much easier on the eyes. Feature requests: 1. Filter between manifest 2 and manifest 3 extensions 2. Include a table showing all recently updated extensions, along with an indicator of whether their required permissions have changed Keep up the great work!
Extra Virgi
★★★★★ ·
Read moreVery useful plugin, I am able to see all my extensions and their permissions. Helps me make informed decision! Thank you
Ruchika Batra
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Василий
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Котофей Мурмяукович
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
House Music
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Виктор
★★★★★ ·
Read more這是一款非常優秀的擴展,可以幫助用戶分析瀏覽器中安裝的所有插件所需的權限,並解釋獲取這些權限可能產生的風險。這樣我就可以清楚地看到哪些擴展是危險的。我便可以選擇繼續使用它或丟棄它。另外,介面也設計的非常漂亮。
消滅萬惡共匪
★★★★★ ·
Read more這是一款非常優秀的擴展,可以幫助用戶分析瀏覽器中安裝的所有插件所需的權限,並解釋獲取這些權限可能產生的風險。這樣我就可以清楚地看到哪些擴展是危險的。我便可以選擇繼續使用它或丟棄它。另外,介面也設計的非常漂亮。
美國威武
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Enter Hunter
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Дурдом Обыкновенный
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Enter
★★★★★ ·
Read moreSecurity of extensions does unfortunately not get enough attention. It is no easy task to determine whether an extension is safe or malicious. 5-star reviews are too often fake since Google does not verify them. Even fully functional extensions may quietly transmit user data without consent. Extension Auditor provides a detailed overview of the permissions requested by each extension, prioritizing them based on their level of invasiveness. It allows me to focus on the most invasive extensions first and helps me answer the question "Is the potential risk posed by this extension worth its functionality?" P.S. I love the update that it now also shows the permissions per extension as a table in addition to the grid overview + CSV download. When you have more than 100 extensions it makes it so much easier on the eyes. Feature requests: 1. Filter between manifest 2 and manifest 3 extensions 2. Include a table showing all recently updated extensions, along with an indicator of whether their required permissions have changed Keep up the great work!
Extra Virgi
★★★★★ ·
Read moreVery useful plugin, I am able to see all my extensions and their permissions. Helps me make informed decision! Thank you
Ruchika Batra
★★★★★ ·
Read moreI’ve been using this extension for a bit and it’s given me a much better idea of what my installed extensions are actually doing.
Kirill Galushko
★★★★★ ·
Read moreExtension Auditor gives a much clearer picture of what my browser extensions are actually allowed to do. The permission and host-access checks are useful for spotting extensions with broader access than expected, while the activity logs make it easier to see changes over time. The privacy score and quick settings are a nice bonus too. It feels like a practical security checkup for Chrome.
Atiqur Islam
★★★★★ ·
Read moreI like having a quick way to see what my installed extensions are actually allowed to do. The permission and host access checks make it easier to spot anything that seems unnecessarily broad. The activity log is useful for keeping track of changes over time, while the privacy controls give me a simple way to tighten up browser settings when needed.
Shafin Islam
★★★★★ ·
Read moreI tested Extension Auditor by scanning my installed extensions, and it gave me a clear overview of their permissions and risk levels I liked the detailed breakdown for each extension, especially the host permissions and browser controls, although the security scores can feel quite strict for some extensions.
Kareem Abdelaleem
★★★★★ ·
Read moreI’ve been using Extension Auditor to get a better idea of what my browser extensions are actually doing, and it gives me a much clearer sense of what needs attention. I especially like being able to spot risky permissions and review activity without sending everything to some external service. It feels more like a practical security checkup than another complicated browser tool.
Ezabul Mia
★★★★★ ·
Read moreThe permission analysis is the part I’d probably check first. An extension asking for broad access can be easy to overlook, so having a place that explains what those permissions actually mean makes the decision to keep or remove an extension feel more informed.
Salam Mia
★★★★★ ·
Show all reviews
Read moreThis extension helps me review and understand the security risks of Chrome extensions by analyzing their permissions and potential security findings. I like that it clearly separates browser, web, and host permissions and explains why each permission may be risky. The risk ratings also give me a quick way to identify extensions that deserve a closer look. Overall, it’s a useful tool for anyone who cares about browser security and privacy.Thanks to the developer for creating and maintaining this helpful extension
abdelaleem mohamed
★★★★★ ·
Read moreIt flags sneaky extensions that tries to peek on my bank websites.The risk board showed me which add on was asking for too much dangerous access.I loves checking update history when tools change their permissions behind back..Simple switches help turn off website trackers and wipe out nasty cookies fast.
Asifur Rahman
★★★★★ ·
Read moreWhat a tool this is turning out to be it helps me scan extensions before i install them , it also allows me to audit the installed extensions , and it manages , monitors and secures my browser environment . Some of its key features include extension manager, extension activity logs and privacy settings manager . i love it and i have also recommended this to my friends
Oyagi Akuma
★★★★★ ·
Read moreExtension Auditor is an essential security tool to scan and audit browser extensions pre and post installation. It analyzes permissions, manifest files and risky host access locally on your device, with real-time activity logs tracking installs, updates and permission changes. The privacy dashboard gives security scores and quick toggles to harden browser settings, great for security practitioners and privacy-focused users.
S2006920 STUDENT
★★★★★ ·
Read moreDid not expect to check permissions this often. Now every new extension gets scanned before it stays. The dangerous combinations view flagged two I would have trusted. I only open it every few weeks, but the logs tab already saved me once after a silent permission change. Exported that one to a text file for later.
kk ss
★★★★★ ·
Read moreInterfaccia pulita e ricca di funzioni per il monitoraggio delle estensioni. Indispensabile.
Alessandro Saeli
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Василий
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Котофей Мурмяукович
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
House Music
★★★★★ ·
Read moreЭто лучшее что придумало человечество! Расширение просто пушка! Блочит всю слежку полностью, если конечно в настройках кое что настроить ручками.
Виктор
★★★★★ ·
Read more這是一款非常優秀的擴展,可以幫助用戶分析瀏覽器中安裝的所有插件所需的權限,並解釋獲取這些權限可能產生的風險。這樣我就可以清楚地看到哪些擴展是危險的。我便可以選擇繼續使用它或丟棄它。另外,介面也設計的非常漂亮。
消滅萬惡共匪
★★★★★ ·
Read more這是一款非常優秀的擴展,可以幫助用戶分析瀏覽器中安裝的所有插件所需的權限,並解釋獲取這些權限可能產生的風險。這樣我就可以清楚地看到哪些擴展是危險的。我便可以選擇繼續使用它或丟棄它。另外,介面也設計的非常漂亮。
美國威武
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Enter Hunter
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Дурдом Обыкновенный
★★★★★ ·
Read moreБомбезная вещь если разобраться в настройках!
Enter
★★★★★ ·
Read moreSecurity of extensions does unfortunately not get enough attention. It is no easy task to determine whether an extension is safe or malicious. 5-star reviews are too often fake since Google does not verify them. Even fully functional extensions may quietly transmit user data without consent. Extension Auditor provides a detailed overview of the permissions requested by each extension, prioritizing them based on their level of invasiveness. It allows me to focus on the most invasive extensions first and helps me answer the question "Is the potential risk posed by this extension worth its functionality?" P.S. I love the update that it now also shows the permissions per extension as a table in addition to the grid overview + CSV download. When you have more than 100 extensions it makes it so much easier on the eyes. Feature requests: 1. Filter between manifest 2 and manifest 3 extensions 2. Include a table showing all recently updated extensions, along with an indicator of whether their required permissions have changed Keep up the great work!
Extra Virgi
★★★★★ ·
Read moreVery useful plugin, I am able to see all my extensions and their permissions. Helps me make informed decision! Thank you
Ruchika Batra
★★★★★ ·
Browser security, priced simply.
For your own browsers or for every browser in the company. Every plan gets the same risk analysis and all 11 change alerts — paid plans add fleet scale, admin-console sync and support.
- No feature paywalls
- 7-day free trial, cancel any time
- All 11 change alerts on every plan
- 1 user · up to 3 managed browsers
- 10 discovered extensions analysed & monitored per browser
- 5 ad-hoc lookups per browser included
- Chrome, Edge & Firefox
- All 11 monitor event types
- In-app, email, Slack, Teams & webhook alerts
- Account activity log & full API access
- 1,000 API calls / month
- Email support (within 72 hours)
- 5–200 managed browsers · unlimited admin logins
- 5 discovered extensions analysed & monitored per browser
- 1 ad-hoc lookup per browser · $6 each after
- Fleet-wide inventory and allow / warn / block policies
- All 11 monitor event types
- Slack, Teams, email & webhook alerts
- Agent-less & agent-based deployment
- Account activity log & full API access
- 5,000 API calls / month
- Email support (within 48 hours)
- Everything in Team, plus:
- 25–1,000 managed browsers
- Google Workspace & Microsoft Entra fleet integration
- Security questionnaire support (SIG/CAIQ-style)
- Reusable alert destinations
- 50,000 API calls / month
- Dedicated customer success manager · monthly calls
- Priority email support (within 24 hours)
Prices exclude applicable taxes, including 9% GST for Singapore-billed accounts.

Ishan Girdhar
Founder, Extension Auditor
Frequently Asked Questions
Latest Insights & Updates
Stay up to date with the latest trends, tutorials, and best practices in software development. Our experts share their knowledge to help you build better applications.

Identifying Malicious Browser Extensions
Our Risk Engine scores 1.4M Chrome extension versions and hits 97% recall globally — but on extensio...
I Quit My Job After the Cyberhaven Breach. Here's What I've Been Building.
14 months ago, the Cyberhaven Chrome extension breach exposed a massive blind spot in enterprise sec...
We Scanned 534,000 Chrome Extensions. Here's What We Found.
We analyzed over 534,000 Chrome extensions and 1.3 million versions. The numbers on permissions, rem...
Continuously Monitoring for Malicious Browser Extensions & UpdatesStart your free trial
It is humanly impossible to manually review every extension and update for new versions, permissions, code changes, and review it everytime.
Learn how Extension Auditor can help you to monitor for malicious browser extensions and updates.

