WhatRuns

Name: WhatRuns
Rating: 4.0484 (62 reviews)
Author: Whatruns

Discover what runs a website - This Firefox extension helps you identify technologies used on any website at the click of a button.

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Features & Capabilities

WhatRuns is a powerful Firefox extension designed to help you instantly identify technologies used on any website. Whether you're curious about which frameworks, content management systems, or analytics tools a site uses, WhatRuns reveals this information with a simple click. This extension streamlines the process of technology discovery, making it accessible for developers, marketers, and curious users alike. Its user-friendly interface ensures quick insights without any hassle, enhancing your web browsing and research experience.

User Growth & Download Statistics

Add-on Developer Tools

By:

Daily users:

Rating:

Version:

1.9.0 Last updated: 2026-04-02

Version code:

6205494

Creation date:

2017-05-31

Risk:

Permissions:

tabs
webRequest
activeTab
storage
http://*/*
https://*/*

Content scripts matches:

Size:

1.93MB

Email:

he*****@whatruns.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-23

Compare stats and ranking:

Ranking

# 1,195 ▼ 21

Other rankings

#126 in Web Development

#129 in Search Tools ▼ 4

#184 in Appearance ▼ 1

#18 in identify keyword 38

#23 in discover keyword 37

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Other platforms

WhatRuns (v1.10.0)

400,000 4.21

(825)

WhatRuns (v3.8.10.2352)

5,917 4.00

(4)

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:

Whatruns

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/whatruns/

Email:

he*****@whatruns.com

Website:

https://www.whatruns.com

Permission Change History

2025-08-21: Version 1.7.7 → 1.8.21

Add Permissions: activeTab

User Reviews

User reviews show WhatRuns is unreliable and often non-functional on Firefox, and appears outdated. While it can provide insights into a site's technologies when it works, many users experience incorrect or incomplete results, and the addon raises privacy concerns (cookies, broad permissions, and openness). The maintenance gap and presence of better alternatives (e.g., Wappalyzer) contribute to a generally negative sentiment with occasional brief positives when functioning properly.

Pros

Useful for identifying the technologies running on a site when it works.
Some users report positive experiences and call it a 'working' tool (e.g., 'great!', 'it's fine').
Historically it was considered one of the best tools for discovering a site's tech stack before newer competitors like Wappalyzer.

Cons

Unreliable and inconsistent: it often doesn't work or only works for some sites.
Not maintained/up-to-date: users note it has not been updated for years and Firefox support may be lagging.
Privacy concerns: it creates cookies on startup, requests broad permissions, and questions about openness/source code are raised.
Inaccurate or incomplete results: users report wrong data (e.g., WordPress versions) or very limited results (e.g., shows only a single item).
Performance/UX issues: the extension can spin forever or hang, leading to a poor user experience.

Recent reviews

by ch*****, 2026-05-18

It gives incomplete results. Compared to Wappalyzer, Wappalyzer shows more results, but sometimes the results of the two don't match...

by Ce*****, 2026-04-16

рабочая вещь!)

by Bi*****, 2025-12-15

View all user reviews ›

Is WhatRuns 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.

WhatRuns 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.
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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.

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

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
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