ownDictionary Firefox

ownDictionary

By: name Add-on
Get word definitions and examples on double-click.

Features & Capabilities

Features A browser extension that displays word definitions and examples on double-click. Save your vocabulary with surrounding context and manage your learning through an intuitive pop-up interface.

  • ✅ Choose one of 270 languages as your target one.
  • ✅ Double click any word to see its definition and examples.
  • ✅ Save the surrounding text and linking to it as an example.
  • ✅ Keep dictionary data in the extension local storage.
  • ✅ Sorting the dictionary by alphabet, date added and look up frequency.
  • ✅ Search saved words.
  • ✅ Import/Export the dictionary.
  • ✅ No data collection.
  • ✅ AI free.
  • 🔴 Edit and add new words via visual editor.
  • 🔴 Word definitions are displayed in English only, regardless of the target language set.
  • 🔴 Does not support phrases and collocation.
  • 🔴 A capitalized word in plural form might be not found due to the need to reduce the number of requests to the API.

API Information This add-on uses FreeDictionaryAPI.com:

  • Rate Limits: 1,000 requests per hour per IP address. No API key required.
  • Data source: Wiktionary
  • License: CC BY-SA 4.0

🛠️ Troubleshooting

  1. Error: The operation timed out:
  • Check your connection and availability of the API.
  1. Error: The word is not found:
  • Check the target language in the extension settings.
  • This error might occurred for capitalized words in plural form (e.g. "Words").
  1. Error 429 (Too Many Requests):
  • Wait until API limits will be refreshed (1,000 requests per hour).
  1. No data was added:
  • Check the importing file extension - it should be .json.
  • The data structure is corrupted.
  • The dictionary already includes all imported words.

User Growth & Download Statistics

Manifest V3 Add-on
By:
name
Daily users:
1
Version:
1.0 Last updated: 2026-06-09
Version code:
6294845
Creation date:
2026-06-06
Risk:
Moderate risk impact High risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • <all_urls>
Size:
94.31KB
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-26
Compare stats and ranking:

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:
name
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/owndictionary/

Permission Change History

2026-07-26: Version 1.1.0 → 1.0
Remove Permissions: contextMenus
2026-07-22: Version 1.0 → 1.1.0
Add Permissions: contextMenus

Is ownDictionary 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.

ownDictionary 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.
  • 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.

ownDictionary 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 has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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