Definitions.net

Name: Definitions.net
Rating: 4.3529 (17 reviews)
Author: STANDS4

By: STANDS4

Get instant dictionary definitions for any word or term that hits you anywhere on the web!

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Features & Capabilities

Definitions.net is a free, multilingual Chrome extension that delivers instant dictionary definitions from a variety of authoritative sources including the Random House College Dictionary, Princeton WordNet, Wiktionary, Webster Dictionary, U.S. National Library of Medicine, and the Department of Defense Dictionary of Military and Associated Terms.

With Definitions.net, simply select any word or term on any webpage and click the extension icon to see all relevant definitions in a pop-up. This tool enhances web browsing by providing quick and comprehensive word meanings without needing to open a separate dictionary site. It supports users across languages and domains for an efficient and seamless experience.

User Growth & Download Statistics

Add-on Education

By:

STANDS4

Daily users:

459 -5

Rating:

4.35

(17)

Version:

1.0.7 Last updated: 2019-12-17

Version code:

4925733

Creation date:

2018-02-12

Risk:

Permissions:

Content scripts matches:

*
www.definitions.net

Size:

573.68KB

Email:

yi*****@stands4.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-23

Compare stats and ranking:

Ranking

# 5,138 ▼ 15

Other rankings

#217 in Language Support ▼ 5

#3 in definition keyword 31

#7 in defi keyword 34

#12 in define keyword 12

#26 in term keyword 16

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Other platforms

Definitions.net (v1.0.9)

3,000 4.90

(10)

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:

STANDS4

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/definitions-net/

Email:

yi*****@stands4.com

Website:

https://www.definitions.net/contact.php

User Reviews

Pros

Offers definitions that other major dictionaries do not have
Provides pronunciation and examples for words
Handy extension for quick lookups

Cons

Inconvenient access method (needs toolbar click instead of double-click)
Clutters toolbar and requires overflow menu access
Long name for the extension

Recent reviews

Please, move it to the right click menu! Also, it lacks a lot of words - which is a shame as it is usually those I need to define.

by Mi*****, 2026-01-19

I really wanted to like this extension, but I dislike having to use a toolbar button, which is clumsy, illogical and inconsistent with expected UX behavior. Add support for double-click and/or context menu and I'll reconsider my rating.

by Jo*****, 2025-08-25

Works better than Dictionary anywhere (no longer works), but would be 1000x better if, like that plugin, you just double click a word and the definition pops up, not have to click the icon in the toolbar. otherwise, good!

by Fi*****, 2025-03-20

View all user reviews ›

Is Definitions.net 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.

Definitions.net requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

Definitions.net has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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