Word Highlighter

Word Highlighter

Create a list of words and phrases you are interested in. See them highlighted on every page you visit.

What is Word Highlighter?
Word Highlighter is a Firefox add-on that expands your vocabulary by highlighting words and phrases you're interested in on every page you visit. It tracks words and definitions, offers smart matching in multiple languages, displays definitions on hover, and respects your privacy. Free and open-source.
Merlin
Stats
By: ainzzorl
Users: 164 ▲ 6
Rating: 3.89 (27)
Version: 1.7.3 (Last updated: 2021-10-24)
Creation date: 2017-01-22
Weekly download count: 8
Firefox on Android: Yes
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • storage
  • contextMenus
Size: 1.07M
URLs: Website
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Merlin
Summary

The extension can be used to expand your vocabulary. When you learn a new word, add it to Word Highlighter, and you won't forget the word because it will be highlighted every time you encounter it.

Word Highlighter is smart about how it matches words on the page with words in the dictionary. It understands that "cherry" and "cherries", "aprender Español" and "aprendemos Español" are the same. Smart matching is supported in English, Spanish, French, Italian, Dutch, Norwegian, Portuguese, Russian and Swedish.

  • Tracks words and definitions. Words can be added either in the "Words" tab of the extension popup, or by selecting the word and clicking "Add word" in the context menu.
  • Highlights tracked words on all pages.
  • Displays a tooltip with the definition when you hover over a highlighted word.
  • Displays info about the number of highlighted words on the page.
  • Supports exporting words to and importing from csv and json.
  • Supports customizing highlight color.
  • Supports having multiple groups of words with different settings.
  • Supports disabling all highlights or specific groups on selected pages.
  • Tracks how often each word was found.
  • Respects your privacy - it doesn't send any of your data anywhere.
  • Free and open-source.
User reviews
by V SINHA, 2023-09-25
View all user reviews
Safety
Risk impact

Word Highlighter may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

Word Highlighter has earned a fairly good reputation and likely can be trusted.

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Screenshots