Furigana

A web extension, Auto insert furigana (phonetic characters) on Japanese kanji.

Furigana Firefox Add-on

Furigana is a powerful web extension designed to enhance your reading experience of Japanese text by automatically inserting furigana, the phonetic characters for kanji. This tool is perfect for language learners and those looking to better understand Japanese content online.

Key Features:

  • Auto-inject Furigana: Seamlessly add furigana to any Japanese webpage.
  • Supports Dynamic Pages: Works effortlessly on dynamic content, so you won’t miss any kanji.
  • Context Menu Shortcut: Quickly access the extension through a handy context menu option for convenience. Stay engaged with Japanese articles and websites without the confusion of kanji—all thanks to Furigana!
Manifest V2
By: EYHN
Daily users: 1,347
-8
Rating: 4.52
(29)
Version: 1.0.2 (Last updated: 2019-04-09)
Version code: 3193107
Creation date: 2019-04-09
Weekly download count: 25
Firefox on Android: Yes
Permissions:
  • <all_urls>
  • storage
  • contextMenus
Size: 21.33M
URLs: Website
Full description: See detailed description
Updated: a day ago

User reviews

Pros
  • Works well for reading practice, especially on sites like Wikipedia
  • Provides assistance for reading difficult Kanji
  • Useful for language learners, including native speakers looking to improve
Cons
  • Crashes or slows down the browser, especially with certain sites like Twitter and YouTube
  • Mechanical limitations, such as inability to toggle or remove furigana once inserted
  • Does not work well on all pages, particularly complex sites like Amazon
Most mentioned
  • Functionality and effectiveness for language practice
  • Issues with automatic injection and browser performance
  • Need for toggling features to hide furigana
These summaries are automatically generated weekly using AI based on recent user reviews. User reviews may be inaccurate, spammy, or outdated.
User reviews
Works great for me for my very narrow use case. I specifically wanted to be able to read Wikipedia for practice and it works great with Wikipedia. I've disabled automatic injection just because that's my preference anyway.
by mausmalone, 2025-03-09


Gan Jing World is a clean, curated universe and a dynamic, overlapping network of integrated platforms and services. ==> https://www.ganjing.com
by GanJingWorld, 2022-12-24
View all user reviews

Add-on safety

Risk impact

Furigana 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

Furigana 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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  • Good **** ********* *** **** **** *******
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