Firefox Add-ons

124Versions

0Code reviewed

Not reviewed

No code review on record

We have not reviewed this extension’s code, so we cannot vouch for it either way. Check the permissions below to decide whether it asks for more than it needs.

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44 indicators in this extension

44 indicators

0 versions analysed

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What our analysis found

Add to Buyee, used by 5,294 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites. It comes from a publisher with 2 extensions and was last updated in July 2026.

Add to Buyee Firefox extension security report

ID: add-to-buyee

Extension Info & Metadata

Status

Active

Version

5.82.3

Size

1.82 MB

Rating

3.6/5

Reviews

Users

5,294

Type

Extension

Updated

Jul 23, 2026

Publisher Contextual Analysis

Author: Buyee
Privacy: Privacy Policy
Country: JP
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: Yes
Mailbox exists: Yes
Address: 4-7-35, KITASHINAGAWA GOTENYAMATORASUTOTAWA-6F. SHINAGAWA-KU, 東京都 140-0001 JP
Website: Visit

Extensions

Active

Obsolete

Listed

Unlisted

Users

10,720

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Screenshots & videos

Install growth

User Growth

Showing data from Sep 13, 2023 to Sep 12, 2024

Versions

+0.52%(+28 users)

Compared to 3 months ago

40 versions released in this period

Rating Count

Total: 24 ratings

Average Rating

Current: 3.79 / 5.0

See plans

React Flow

Internal permhash`8df9ef0386…`
No malicious matches

No other extension carries this fingerprint.

Permhash (Mandiant)`9f3cba965e…`
No malicious matches

No other extension carries this fingerprint.

Network indicators

44 URLs and 0 IP literals were extracted from this version.

Item	Type	Severity	Description
<all_urls>	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.
Contextual Risk Factors	Risk Factor	High	The following context increases the overall risk:• 20% increase: Access to sensitive domains increases potential impact• 15% increase: Older manifest version lacks modern security controls
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.
activeTab	Permission	Medium	This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
tabs	Permission	Medium	This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
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.
https://buyee.jp/*	Host	Medium	Host permission — access limited to this URL pattern.
https://.buyee.jp/	Host	Medium	Host permission — access limited to this URL pattern.
https://.gdxtag.com/	Host	Medium	Host permission — access limited to this URL pattern.
https://cdn.stg.buyee.jp/images/add_to_buyee/*	Host	Medium	Host permission — access limited to this URL pattern.
https://s3-ap-northeast-1.amazonaws.com/a2b-campaign-prd/*	Host	Medium	Host permission — access limited to this URL pattern.
https://s3-ap-northeast-1.amazonaws.com/a2b-campaign/*	Host	Medium	Host permission — access limited to this URL pattern.
https://api.main.san-x.co.jp/*	Host	Medium	Host permission — access limited to this URL pattern.
Access to Sensitive Domains	Risk Factor	Medium	This extension requests access to sensitive domains: https://s3-ap-northeast-1.amazonaws.com/a2b-campaign-prd/, https://s3-ap-northeast-1.amazonaws.com/a2b-campaign/
Older Manifest Version	Risk Factor	Medium	This extension uses Manifest Version 2

Sensitive Domain Access

This extension has access to the following sensitive domains:

https://s3-ap-northeast-1.amazonaws.com/a2b-campaign-prd/*
https://s3-ap-northeast-1.amazonaws.com/a2b-campaign/*

44 indicators in this extension

44 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

“Add to Buyee” is a tool that allows you to use Buyee’s proxy purchase service on Popular Japanese online stores.

User reviews

2.4 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

The newest update require accessing all of your data, instead of the previous ones where it request the data only from the websites that Buyee supports.

anon578120·6 Feb 2025

This is just damned stupid. The extension now just scrapes your data from more and more sites you visit, stealing your browsing data just to potentially feed their buying system, which doesn't work some of the time. And now, they're asking for your data from ALL WEBSITES you visit! Take note, people: Now this extension will steal information from ALL WEBSITES you visit! If you want to use Buyee, I highly suggest creating an account on their site and using their services there instead. Do NOT use this extension!

Firefox user 13655530·5 Feb 2025

Extension files

Browse and explore files within this extension package

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URLs

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No URLs found

No IP addresses found

44 indicators in this extension

44 indicators

0 versions analysed

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

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Version	Size	Verdict	Findings	Permhash
5.2.0 Latest	0.75 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.3.0	0.75 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.3.1	0.75 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.4.0	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.4.1	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.4.2	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.4.3	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.5.0	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.5.1	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805
5.5.2	0.76 MB	Not scanned	—	f2c9d7a3eeb04283bbfb8ffce852e65f1dcc3f98c14fe3d5163741d8b2d15805

Showing 1 to 10 of 130 rows

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Code Diff

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Not reviewed

44 indicators in this extension

What our analysis found