Furigana Maker by aiktb

Features:
1. Default works well on Twitter, Wikipedia, Asahi, etc.
2. Add furigana to any regions on the page.
3. Freely modify the font size and color of furigana.
4. Optionally show furigana only on hover state.
5. Configurable default pages and regions for adding furigana.
6. Local Japanese kanji parsing engine (no network required).

*Custom user rules require the use of CSS selectors.*
*Note that program cannot guarantee completely correct word segmentation and kanji pronunciation.*