Is Furigana safe?

Low risk

Furigana converts Japanese page text into parsed HTML, so page text containing markup can become live DOM elements.

Furigana runs on every site and processes Japanese page text that contains Kanji. It sends each matching text node to its background converter, receives furigana markup, and inserts that result as parsed HTML rather than plain text, so markup that was originally inert page text can become active page content.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

EYHNv1.0.2Firefox Add-ons
17Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.0.2. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

  • Store data in your browser

    storage

  • Add items to the right-click menu

    contextMenus

Updated 30 September 2026amo-1482931