Chrome Web Store
24Versions
0Code reviewed

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What our analysis found

XSLT Polyfill, used by 100,000 people, is not yet reviewed by Extension Auditor. It was last updated in October 2026.

XSLT Polyfill

XSLT Polyfill Chrome extension security report

ID: hlahhpnhgficldhfioiafojgdhcppklm

Extension Info & Metadata

Status
Active
Version
1.0.24
Size
0.50 MB
Rating
4.2/5
Reviews
10
Users
100,000
Type
Extension
Updated
Oct 2, 2026
Category
Functionality & ui
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Author
mfreed+extension@gmail.com
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
100,000

Screenshots & videos

Screenshot 1

Install growth

Item
Type
Severity
Description
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk: • 10% increase: Early script execution enables pre-emptive content manipulation
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

About this extension

Applies an XSLT polyfill to all XML documents.

Read the publisher’s full description

Since XSLT (Extensible Stylesheet Language Transformations) is likely to be removed from web browsers in the near future, this extension can be used to maintain functionality. The extension applies an XSLT polyfill (https://github.com/mfreed7/xslt_polyfill) to all raw XML files that contain XSLT processing instructions (e.g. `<?xml-stylesheet ...?>`), and it also injects the polyfilled version of XSLTProcessor so that Javascript usage continues to function. The extension does not affect the page if the XML file does not use XSLT, or if the browser natively supports XSLT. **Key Features:** * **Automatic Transformation:** The extension automatically detects XML files and applies the linked XSLT stylesheet, if present. * **Privacy-Focused:** All processing is done locally on your machine. This extension does not and will never collect, store, or transmit any of your data or browsing activity. Only affects XML pages to convert the raw XML to viewable HTML. This extension (and the polyfill it contains) is open-source. Please feel free to contribute or report bugs: https://github.com/mfreed7/xslt_extension

User reviews

Extension files

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Version
Size
Verdict
Findings
Permhash
1.0.24
Latest
0.50 MBNot scanned—N/A
1.0.23
0.50 MBNot scanned—N/A
1.0.22
0.50 MBNot scanned—N/A
1.0.21
0.50 MBNot scanned—N/A
1.0.20
0.50 MBNot scanned—N/A
1.0.19
0.50 MBNot scanned—N/A
1.0.18
0.50 MBNot scanned—N/A
1.0.17
0.50 MBNot scanned—N/A
1.0.16
0.50 MBNot scanned—N/A
1.0.15
0.50 MBNot scanned—N/A
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