Firefox Add-ons
19Versions
0Code reviewed

Not reviewed

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66 indicators in this extension

66 indicators
0 versions analysed

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What our analysis found

10ten Japanese Reader (Rikaichamp), used by 22,097 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites. It comes from a trusted publisher and was last updated in May 2026.

10ten Japanese Reader (Rikaichamp)

10ten Japanese Reader (Rikaichamp) Firefox extension security report

ID: 10ten-ja-reader

Extension Info & Metadata

Status
Active
Version
1.27.2
Size
18.05 MB
Rating
4.8/5
Reviews
272
Users
22,097
Type
Extension
Updated
May 15, 2026
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
2extensions
All still listed

Publisher Contextual Analysis

Trusted
Author
Birchill
Country
JP
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Address
1-7-2, OTEMACHI CHIYODA-KU, 東京都 100-0004 JP
Website
Visit
Extensions
2
Active
1
Obsolete
0
Listed
2
Unlisted
0
Users
44,700

Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5

Install growth

Item
Type
Severity
Description
file:///*
Risk Factor
Critical
This permission grants access to all websites without restriction. Rated High because it can access any web content, monitor all web activity, and potentially steal sensitive data across all sites.
clipboardWrite
Permission
High
This permission allows modification of clipboard content. Rated High because it can inject malicious content into the clipboard, modify copied passwords, and manipulate copied data.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 20% increase: Access to sensitive domains increases potential impact• 10% increase: Early script execution enables pre-emptive content manipulation• 15% increase: Older manifest version lacks modern security controls• 10% increase: About:blank access enables potential sandbox escape vectors
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
Access to Sensitive Domains
Risk Factor
Medium
This extension requests access to sensitive domains: https://docs.google.com/*
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
About:blank Access
Risk Factor
Medium
This extension can run content scripts in about:blank pages.
Older Manifest Version
Risk Factor
Medium
This extension uses Manifest Version 2
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.

66 indicators in this extension

66 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

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About this extension

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

User reviews

Extension files

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URLs
63
IPv4
3

URLs

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No URLs found
No IP addresses found

66 indicators in this extension

66 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
1.14.1
Latest
12.61 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.15.0
12.35 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.15.1
12.35 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.16.0
12.51 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.17.0
12.52 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.17.1
12.57 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.18.0
12.65 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.19.0
17.23 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.19.1
17.24 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
1.20.0
17.27 MBNot scanned—
69a04760cbe03d3c32c79945ac9266713bfe08646cc289d56b33a487ffdccb5d
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Code Diff

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