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Preview of AddFurigana

AddFurigana by Anton

Adds furigana to Japanese web pages using only local permissively licensed software and data.

Experimental
Available on Firefox for Android™
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Wikipedia rendered with AddFuriganaGNU main page rendered with AddFurigana
About this extension
AddFurigana adds furigana readings above Japanese text on web pages for educational purposes. It runs locally in Firefox using bundled Kuromoji.js and MeCab-IPADIC dictionary data, with no remote API and no page text sent to a server.

Use it to make Japanese reading practice more approachable on ordinary web pages. AddFurigana can make mistakes: unknown names, rare words, ambiguous readings, or dictionary limitations may produce missing or incorrect furigana. The toolbar panel lets you enable or disable annotations and re-scan the current page when needed.

AddFurigana can make mistakes.
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Permissions and data

Required permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
0.1.6
Size
14.87 MB
Last updated
10 days ago (May 5, 2026)
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