# DOM Update Highlighter

> This WebExtension highlights updates as they happen on a webpage. It can be used by frontend developers to observe inefficiencies in working with DOM

Canonical page: [https://chrome-stats.com/d/dom-update-highlighter](https://chrome-stats.com/d/dom-update-highlighter)

## Overview

- **ID:** `dom-update-highlighter`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** klntsky
- **Category:** web-development
- **Daily users:** 1
- **Version:** 1.0.3
- **Last updated:** 2023-09-05
- **First published:** 2023-09-02
- **Size:** 18 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/dom-update-highlighter/)
- **Website:** [https://github.com/klntsky/dom-update-highlighter/issues](https://github.com/klntsky/dom-update-highlighter/issues)

## Description

DOM Update Highlighter is a WebExtension that makes DOM updates more visible as they happen on a webpage. It can be used by frontend developers to observe inefficiencies in working with DOM, such as excessive attribute updates or tree rebuilds.

See <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/954a4848344206d0d9b8bebd2ac5a48c47075b61aeab0395f53dc4cc23916644/https%3A//dom-up.date/" rel="nofollow">the website</a> for more info

## Rankings

- #104,124 — Overall
- #49 — update
- #196 — highlighter

## Permissions and access

### Permissions

- `activeTab`
- `scripting`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/dom-update-highlighter)