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136 indicators in this extension

136 indicators
0 versions analysed

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What our analysis found

Hem and Haw is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites and can observe network requests. It comes from a trusted publisher and was last updated in December 2025.

Hem and Haw

Hem and Haw Chrome extension security report

ID: cohhnfmlkkancdkcooidfhanchcjljbf

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
3.7.0
Size
1.48 MB
Rating
0.0/5
Reviews
0
Users
82
Type
Extension
Updated
Dec 30, 2025
Category
Privacy & security
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
2extensions
All still listed

Publisher Contextual Analysis

Trusted
Author
tin
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
2
Active
2
Obsolete
0
Listed
2
Unlisted
0
Users
85

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Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4

Install growth

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
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.
history
Permission
High
This permission grants access to your complete browsing history. Rated High because it can track all visited websites, reveal sensitive browsing patterns, and expose private information.
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.
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.
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.
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.
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.

136 indicators in this extension

136 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Looks for HEMs and other personal information sent to third parties.

Read the publisher’s full description

https://tincangit.github.io/hemandhaw-study/ About Hem and Haw: This browser extension monitors when hashes of your personally identifiable information (like emails or phone numbers) are sent to third parties. How it works: 1. You enter email addresses, phone numbers, and/or other details, and press submit. 2. Hem and Haw creates hashes of these inputs. 3. When a matching hash is detected being sent to a third party, Hem and Haw takes note and logs to our server: - Type of data (e.g., email), - Hash type (e.g., MD5), - Third party's hostname, - Originating website's hostname, - Where in the transmission (HTTP request) the hash was found, - HTTP Referer, - User Agent, - Whether you use an adblock, your self-reported browser and your self-reported privacy-consciousness score At any point, you can stop Hem and Haw from searching for hashes and add/modify/delete the PII to search for. Additionally, you can see the log of detected transmissions, download the log as JSON, and clear the log. You can use Hem and Haw to see where your hashed PII is being sent from and to! What Hem and Haw does NOT collect to our server: - Your actual personal data (e.g., email addresses or phone numbers) and its hashes, - HTTP request details and data, - Any other personal information. Your IP address is also not collected by our server. IMPORTANT NOTE: Hem and Haw will clear all results when you clear all history. Data collection is approved as part of a University of Calgary research study: REB25-0355.

User reviews

Extension files

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URLs
97

URLs

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No URLs found
No IP addresses found

136 indicators in this extension

136 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
3.7.0
Latest
1.48 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.6.7
1.48 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.6.5
1.48 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.6.3
1.48 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.6.2
1.04 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.6.1
1.42 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.6.0
1.42 MBNot scanned—
65218b92bd760c0ee2d01b6f7d4d7fd1e3a6de316c947e88bcb17f244a7d3995
3.5.5
1.44 MBNot scanned—
e5f14f0f01fd375c34975c97014dc6c6359fcaa63127bca51de2fdd569c7322f
3.5.4
1.00 MBNot scanned—
e5f14f0f01fd375c34975c97014dc6c6359fcaa63127bca51de2fdd569c7322f
3.5.3
1.44 MBNot scanned—
e5f14f0f01fd375c34975c97014dc6c6359fcaa63127bca51de2fdd569c7322f
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Code Diff

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