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48Versions
21Code reviewed

No malware found

In code review

Our reviewer read this extension’s code and found no malicious behaviour. An automated risk flag was reviewed and overturned.

Claude

Claude

ID: fcoeoabgfenejglbffodgkkbkcdhcgfn

Supported Languages

🇺🇸US English

Extension Info & Metadata

Status
Active
Version
1.0.45
Size
6.50 MB
Rating
2.0/5
Reviews
1,648
Users
16,000,000
Type
Extension
Updated
Sep 19, 2026
Category
Productivity Tools
Price
Free
Featured
No
Visibility
Unlisted
Mature
No
By Google
No
Trusted
Yes
Download CRX
Chrome Web Store
Report Issue
This publisherTrack record

1extension

All still listed

Publisher Contextual Analysis

Trusted
Author
https://claude.comView Profile
Privacy
Privacy Policy
Help
Help Center
Country
US
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Address
548 Market St PMB 90375 San Francisco, CA 94104-5401 US
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
0
Unlisted
1
Users
16,000,000

Screenshots & videos

Screenshot 1
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Install growth

About this extension

Claude in Chrome

Read the publisher’s full description

Claude works directly in your browser and takes actions on your behalf. Currently limited to 1,000 Max plan subscribers during our initial research phase. TWO REQUIREMENTS TO USE THIS EXTENSION: Step 1: Max plan required. You need an active Max plan subscription to join our research preview waitlist at claude.ai/chrome. Step 2: Wait for access notification. After joining the waitlist, we'll email you when it's your turn. Only install after receiving this email. Installing without both requirements will block your sign-in. CLAUDE IN YOUR BROWSER Chat with Claude in the sidebar while browsing any website. Ask Claude to read pages, click buttons, or handle repetitive tasks—all through natural conversation. Browser use is a beta feature with unique risks. These risks are heightened when interacting with the internet. Take precautions. Read more here: https://clau.de/getting-started-with-claude-for-chrome BUILT FOR REAL WORKFLOWS • Navigating and organizing your inbox and calendar • Form filling and repetitive data entry • Extracting information from web content • Navigating complex multi-step processes YOU'RE IN CONTROL Set permissions for each website. Claude will ask before taking certain irreversible or potentially harmful actions, like making a purchase. Be careful when bypassing permissions. RESEARCH PREVIEW MEANS: • This is experimental technology with known limitations • Designed for AI-experienced users who can provide feedback • Will not work perfectly or risk-free on all websites or tasks • Helps shape the future of Claude in the browser through your usage GETTING STARTED 1. Join waitlist at claude.ai/chrome (Max plan required) 2. Install extension once approved 3. Sign in with Max credentials 4. Open sidebar and describe your task 5. Grant site permissions when prompted IMPORTANT: BROWSER USE FACES PROMPT INJECTION RISKS Malicious websites can hide instructions that trick AI into harmful actions - like deleting files or sharing banking information. Our testing found these attacks can succeed even with safeguards. HOW TO USE IT SAFELY: 1. Start with trusted sites: Grant permissions to familiar websites first while learning how Claude works 2. Review before sensitive actions: Always confirm before Claude handles financial, personal, or work-critical tasks 3. Watch for malicious instructions: Be cautious if Claude suddenly behaves unexpectedly or ignores your commands - some websites contain hidden instructions that can override yours 4. Report issues immediately: Help us improve by flagging any concerning behavior through the feedback options Full safety guide: https://clau.de/getting-started-with-claude-for-chrome Important: This research preview carries unique risks. Claude may occasionally misinterpret instructions or website layouts. Always review actions before confirming, especially for sensitive tasks. Terms of Service: https://www.anthropic.com/legal/consumer-terms Privacy Policy: https://www.anthropic.com/legal/privacy

User reviews

Extension files

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Item
Type
Severity
Description
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
debugger
Permission
Critical
This permission grants the extension ability to debug and control other extensions and browser tabs. Rated Critical because it can access and modify other extensions' internal state, inject code, and access sensitive data from any tab.
declarativeNetRequestWithHostAccess
Permission
Critical
This permission combines network request modification with host permissions. Rated Critical because it can modify requests for specific domains, potentially targeting sensitive websites with precise attack rules.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
webNavigation
Permission
High
This permission enables monitoring of all browser navigation events and transitions. Rated High because it can track every page visit, navigation method, and browsing pattern, potentially exposing sensitive browsing behavior and user activities.
offscreen
Permission
High
This permission creates hidden browser documents with full DOM access. Rated High because it can run background operations invisibly, potentially executing malicious code without user awareness.
nativeMessaging
Permission
High
This permission enables communication with applications installed on your computer. Rated High because it can exchange data with native programs, potentially exposing system-level information and local files.
downloads
Permission
High
This permission controls file downloads and accesses download history. Rated High because it can download malicious files, access sensitive downloaded documents, and track user download patterns.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
tabGroups
Permission
Medium
This permission manages tab grouping functionality. Rated Medium because it can monitor tab organization, track user workflow patterns, and modify tab relationships.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
sidePanel
Permission
Low
This permission adds custom panels to the browser interface. Rated Low because it only affects browser UI elements and cannot access page content.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
notifications
Permission
Low
This permission displays system notifications. Rated Low because it can only show user-visible notifications without accessing system data.
system.display
Permission
Low
This permission reads display configuration. Rated Low because it only accesses screen properties without content access.

Each row lists a threat category the scanner evaluates. A checkmark means the review ran and found no matching issues in that category for this version.

  • Data Exfiltration

    Code review completed; no malicious patterns detected for this category.

  • Unauthorized Data Collection

    Code review completed; no malicious patterns detected for this category.

  • Network Interception

    Code review completed; no malicious patterns detected for this category.

  • Code Injection

    Code review completed; no malicious patterns detected for this category.

  • Credential Theft

    Code review completed; no malicious patterns detected for this category.

  • Obfuscation

    Code review completed; no malicious patterns detected for this category.

  • Tracking

    Code review completed; no malicious patterns detected for this category.

  • Privilege Escalation

    Code review completed; no malicious patterns detected for this category.

  • Phishing

    Code review completed; no malicious patterns detected for this category.

  • Remote Code Loading

    Code review completed; no malicious patterns detected for this category.

  • Other

    Code review completed; no malicious patterns detected for this category.

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URLs
126
IPv4
30

URLs

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No URLs found
No IP addresses found

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Version
Size
Verdict
Findings
Permhash
1.0.94
Latest
6.50 MBNot scanned—N/A
1.0.93
6.48 MBCaution0
77d4c3a0212c1438be905cce30129cebfec2ad9e3b1aef08009efa529af4587d
1.0.92
6.45 MBNo malware found0
77d4c3a0212c1438be905cce30129cebfec2ad9e3b1aef08009efa529af4587d
1.0.91
6.44 MBNo malware found0
77d4c3a0212c1438be905cce30129cebfec2ad9e3b1aef08009efa529af4587d
1.0.90
6.42 MBNo malware found0
77d4c3a0212c1438be905cce30129cebfec2ad9e3b1aef08009efa529af4587d
1.0.39
4.15 MBNo malware found0
09b16a5bf80c20887af265cd9f6774051101e951b9424d0d526ce0d493ce8e98
1.0.44
4.56 MBNo malware found0
09b16a5bf80c20887af265cd9f6774051101e951b9424d0d526ce0d493ce8e98
1.0.45
4.57 MBNo malware found0
09b16a5bf80c20887af265cd9f6774051101e951b9424d0d526ce0d493ce8e98
1.0.47
4.58 MBCaution0
09b16a5bf80c20887af265cd9f6774051101e951b9424d0d526ce0d493ce8e98
1.0.49
4.62 MBNo malware found0
09b16a5bf80c20887af265cd9f6774051101e951b9424d0d526ce0d493ce8e98
Showing 1 to 10 of 50 rows
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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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