Quickly translate Japanese by hovering over words. Formerly released as Rikaichamp.

10ten Japanese Reader (Rikaichamp) - Fast Japanese Translation
10ten Japanese Reader (Rikaichamp) is a unique Firefox add-on that instantly translates Japanese words on hover. It offers comprehensive features like pitch accent information, auto-updating of dictionaries, support for non-English dictionaries, translation of Japanese yen amounts, numbers, era years, measurements, and shogi moves. It recognizes a range of grammatical forms and provides localized translations in Japanese and Simplified Chinese. It also offers Kanji data for Kanji kentei, and ensures minimal memory usage for seamless operation.
Add-on stats
Manifest V2
By: Birchill
Rating: 4.74
1 new ratings
(247)
Weekly download count: 315
Firefox on Android: Yes
Permissions:
- alarms
- clipboardWrite
- contextMenus
- storage
- unlimitedStorage
Size: 18.46M
Email: in*****@birchill.co.jp
URLs: Website ,Privacy policy
Full description: See detailed description
Ranking
# 470 ▲ 2
Other platforms
Not available on Android
User reviews
Pros
- Easy to use
- Very helpful for learning Japanese
- Works well after installation
- Useful for immersion reading
- Accurate recognition of words
Cons
- Occasional bugs with activation requiring multiple clicks
- Issues with updating the add-on
- Problems finding specific homonyms or words in the dictionary
- The bundled font can be jarring or inconsistent with system fonts
Most mentioned
- Works well for learning Japanese
- User interface issues with activation
- Difficulty finding specific words among homonyms
- Desire for additional language support
- Font display issues
User reviews
by Lovecraft Zhao, 2025-03-05
by Krirub, 2025-02-19
by Beck, 2025-02-07
Add-on safety
Risk impact
10ten Japanese Reader (Rikaichamp) requires some sensitive permissions that could impact your browser and data security. 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
We don't have sufficient data to confidently determine the risk likelihood of 10ten Japanese Reader (Rikaichamp). Use it at your own risk.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
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- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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