Site Load Analyzer

Name: Site Load Analyzer
Author: helliong

Analyze page load time, transfer size, requests, and the heaviest images, videos, scripts, styles, and fonts directly in Firefox DevTools.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-08-18

Version:

1.0.0

Last updated: 2026-08-09

Features & Capabilities

Site Load Analyzer adds a dedicated performance analysis panel to Firefox DevTools.

It helps developers quickly understand what affects a website’s loading performance without sending any data to external services.

Features:

• Page load and DOMContentLoaded timing • Total transferred page size • Number of network requests • Cached, failed, and third-party request counts • Resource breakdown by images, videos, JavaScript, CSS, fonts, and other files • List of the 50 heaviest resources • Automatic optimization recommendations • Detection of heavy images, excessive JavaScript, missing compression, weak caching, and failed requests • Filtering resources by type • Exporting the complete analysis as a JSON report • Light and dark theme support

How to use:

Open Firefox DevTools on the website you want to analyze.
Select the “Load Analyzer” panel.
Reload the inspected page while DevTools is open.
Review the collected metrics, heavy resources, and optimization recommendations.

Resource sizes are calculated from the HAR data provided by Firefox. When an exact transferred size is unavailable, the extension uses the resource content size as an estimate.

Privacy:

All analysis is performed locally inside Firefox DevTools. The extension does not collect, store, transmit, or share browsing data and does not require access to external services.

User Growth & Download Statistics

Add-on

By:

helliong

Daily users:

Version:

1.0.0 Last updated: 2026-08-09

Version code:

6397064

Creation date:

2026-08-06

Risk:

Size:

256.56KB

Email:

sa*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-18

Compare stats and ranking:

Ranking

# 107,841 ▲ 1,692

Other rankings

#120 in analyzer keyword 18 ▼ 2#171 in analyze keyword 11 ▼ 1

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

helliong

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/site-load-analyzer/

Email:

sa*****@gmail.com

Website:

https://helliong.space/

Is Site Load Analyzer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Site Load Analyzer requires very minimum permissions.

Risk impact analysis details

Medium Access to developer tools, typically low risk unless it's used to inspect or manipulate data improperly.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Site Load Analyzer is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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