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Mutation Events Polyfill icon

Mutation Events Polyfill Chrome Extension Analysis

Developer & Designer Tools

Chrome extension ID: fnhgiplcfikoaaaakbflchmibaikghpj

A technical utility that restores deprecated Mutation Events functionality in Chrome. It enables legacy web code to continue functioning on modern browser versions by implementing a shim.

Developer:Keaton F
Version:1.0
Size:1.1MiB
Last updated:
View developer profile
External:Chrome Web Store

Overview

Installs

8K+

Rating

★ 5.0

5 reviews

Languages

1 locales

Includes English

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Developer & Designer Tools

Pricing friction

Low review signal

Complaint intensity

Low review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The extension positions itself as a critical compatibility fix for the removal of Mutation Events in Chrome 127. It aims to prevent website breakage by loading a MutationObserver-powered polyfill across all pages.

Inferred product pattern

Technical browser compatibility shim for deprecated API functionality.

Review-backed pain points

No negative review-backed pain points observed; users report the tool works as intended.

Observed feature gaps

The extension is a single-purpose utility; it lacks configuration options for specific site-by-site enabling/disabling.

Tags
PolyfillWeb DevelopmentBrowser CompatibilityChrome Fix
Target users

- Web developers

- Users of legacy web applications

- IT administrators maintaining old internal tools

Primary use cases

- Fixing site breakage caused by Chrome 127 updates

- Maintaining legacy JS code without rewriting for MutationObserver

- Browser compatibility testing

Positive themes

- Effectiveness

- Utility

Negative themes

- None observed

Observed friction

- No pricing friction observed; the extension appears to be free.

Evidence boundary: Data extracted from the store listing and a small sample of 5-star user reviews. Very limited review sample size.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

No support or account complaints observed.

Reliability

No reliability or performance complaints observed.

Privacy

No privacy or security complaints observed.

Access & pricing

- Free usage observed

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 2

- Videos: 0

- Languages: 1

Trust signals

- Developer contact

Store metadata

- Version: 1.0

- Size: 1.1MiB

- Last updated:

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

Mutation Events PolyfillChrome 127 fixMutationObserver polyfillrestore mutation events

Comparison

Mutation Events vs MutationObserver

Problem

Chrome 127 breakageMutation Events removedwebsite stopped working Chrome 127

Alternative

MutationObservermutation-events npm

Similar extensions

Jump to related discovery paths:

More in developerMore from this developer

Screenshots

Mutation Events Polyfill screenshot
Mutation Events Polyfill screenshot

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