XSLT Polyfill icon

XSLT Polyfill

by mfreed+extension@gmail.com · Functionality & UI
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Applies an XSLT polyfill to all XML documents.

Users
100K
+97K in 30 days
Rating
4.2 / 5
−0.23 in 30 days
Ratings
10
+3 in 30 days
Store rank
#2,244
#1,982 among extensions
Version
1.0.24
updated 2 Oct 2026

Users

monthly, 14 months
050K100KAug 2025Apr 2026Oct 2026
Latest, 15 Oct 2026: 100,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 14 months
0510Aug 2025Apr 2026Oct 2026
Latest, 15 Oct 2026: 10 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About XSLT Polyfill

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

Growth

WindowUsersChangeRatingsRating
7 days+10K+11.1%+1−0.36
30 days+97K+3233.3%+3−0.23
6 months+99K+9900.0%+50.00
1 year+100K+384515.4%+7−0.80

Chrome Web Store search rankings

Where XSLT Polyfill appears when people search the store, with the 30 day change
Search phrasePosition30 days
contain#16+10

Version history

24 versions recorded
1.0.242 Oct 2026
1.0.2329 Sep 2026
1.0.2218 Sep 2026
1.0.2111 Sep 2026
1.0.2024 Aug 2026
1.0.197 Aug 2026
1.0.187 Aug 2026
1.0.1714 May 2026

Details

Category
Functionality & UI
First seen
13 Aug 2025
Size
514 KB
Languages
en-US
Pricing
Free
Extension ID
hlahhpnhgficldhfioiafojgdhcppklm

Permissions and risk

Moderate riskimpact 2, likelihood 2

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