HTTP Headers Viewer

Name: HTTP Headers Viewer
Author: RUNARDATA

By: RUNARDATA

Displays the HTTP headers of the current page.

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Install

Features & Capabilities

HTTP Headers Viewer is a simple and effective browser extension that allows you to inspect the HTTP headers of the current webpage. Whether you're a developer, a network engineer, or a curious user, this tool provides instant access to header details, helping you better understand the data being exchanged between your browser and the server.

Features:

Displays all HTTP request and response headers.
Supports all URLs and webpage types.
Lightweight and easy to use with a clean interface.
Automatically runs when you open a webpage.

How to Use:

Install the extension.
Click on the extension icon in the browser toolbar to view the headers of the current page.

User Growth & Download Statistics

Add-on

By:

RUNARDATA

Daily users:

26 -1

Version:

1.1 Last updated: 2025-01-20

Version code:

5878292

Creation date:

2025-01-20

Risk:

Permissions:

activeTab
tabs
<all_urls>

Content scripts matches:

<all_urls>

Size:

17.90KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 21,105 ▼ 511

Other rankings

#68 in header keyword 27 ▲ 1#146 in viewer keyword 62 ▼ 2

For Developers

Monetize with App Pass Boost with Extension Booster

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:

RUNARDATA

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/http-headers-viewer/

Website:

https://runar-data.de/

Is HTTP Headers Viewer 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.

HTTP Headers Viewer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

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.

HTTP Headers Viewer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension website URL may be invalid
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****