Seller Assistant Firefox

Seller Assistant

SELLER ASSISTANT — the Ultimate Product Research Firefox Extension for Amazon Sellers.
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Features & Capabilities

Seller Assistant is a powerful Firefox extension designed for Amazon sellers seeking efficient and comprehensive product research. It consolidates essential tools such as FBA Calculator, Intellectual Property Alerts, and Stock Checker into a single interface directly embedded on Amazon product pages. Users gain valuable insights including ASIN, BSR, category, dimensions, pricing, sales estimates, and competitor stock levels.

The extension also features an advanced profit calculator accounting for referral and FBA fees alongside customizable logistics costs. Alerts for brand restrictions, IP warnings, meltable inventory, and hazmat issues help sellers avoid common pitfalls. With seamless one-click export to Google Sheets and support for multiple Amazon marketplaces, Seller Assistant streamlines the data management process. Ideal for arbitrage and wholesale, it offers a free 14-day trial and affordable subscription plans starting at $15.99/month.

User Growth & Download Statistics

Manifest V3 Add-on E-Commerce Analytics Marketing
By:
Seller Assistant
Daily users:
156 -6
Rating:
5.00
(3)
Version:
1.30.1 Last updated: 2026-04-29
Version code:
6240881
Creation date:
2021-12-23
Risk:
High risk impact Moderate risk likelihood
Permissions:
Host permissions:
  • https://*.amazon.com/*
  • https://*.amazon.ca/*
  • https://*.amazon.com.mx/*
  • https://*.amazon.com.br/*
  • https://*.amazon.ae/*
  • https://*.amazon.de/*
  • https://*.amazon.eg/*
  • https://*.amazon.es/*
  • https://*.amazon.fr/*
  • https://*.amazon.co.uk/*
    • See more
Content scripts matches:
  • www.amazon.com
  • www.amazon.ca
  • www.amazon.com.br
  • www.amazon.com.mx
  • www.amazon.ae
  • www.amazon.de
  • www.amazon.eg
  • www.amazon.es
  • www.amazon.fr
  • www.amazon.co.uk
    • See more
Size:
3.45MB
Email:
su*****@sellerassistant.app
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-21
Compare stats and ranking:

Ranking

# 9,184 ▼ 180
Other rankings
#356 in Shopping ▼ 6#18 in seller keyword 24 #111 in walmart keyword 13 ▼ 2#168 in assistant keyword 50 ▼ 7

Other platforms

Chrome
Seller Assistant — Amazon Product Research Tool (v1.31.1)
40,000 4.87 (267)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Seller Assistant
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/seller-assistant-app/
Email:
su*****@sellerassistant.app
Website:
https://www.sellerassistant.app/

Permission Change History

2024-11-12: Version 1.14.7 → 1.16.0
Add Permissions: activeTab
2024-05-22: Version 1.13.2 → 1.14.1
Remove Permissions: sidePanel contextMenus
2024-04-24: Version 1.12.0 → 1.13.0
Add Permissions: contextMenus
2024-02-23: Version 1.7.3 → 1.8.0
Add Permissions: sidePanel
2023-12-06: Version 1.6.0 → 1.6.2
Remove Permissions: tabs webNavigation sidePanel
2023-12-05: Version 1.5.3 → 1.6.0
Add Permissions: tabs webNavigation sidePanel
2023-02-03: Version 0.33.2 → 1.4.0
Add Host permissions: https://*.amazon.com/* https://*.amazon.ca/* https://*.amazon.com.mx/* https://*.amazon.com.br/* https://*.amazon.ae/* https://*.amazon.de/* https://*.amazon.eg/* https://*.amazon.es/* https://*.amazon.fr/* https://*.amazon.co.uk/* https://*.amazon.in/* https://*.amazon.it/* https://*.amazon.nl/* https://*.amazon.pl/* https://*.amazon.sa/* https://*.amazon.se/* https://*.amazon.com.tr/* https://*.amazon.sg/* https://*.amazon.com.au/* https://*.amazon.co.jp/* https://*.sellerassistant.app/ storage
Remove Permissions: https://*.amazon.com/* https://*.amazon.ca/* https://*.amazon.com.mx/* https://*.amazon.com.br/* https://*.amazon.ae/* https://*.amazon.de/* https://*.amazon.eg/* https://*.amazon.es/* https://*.amazon.fr/* https://*.amazon.co.uk/* https://*.amazon.in/* https://*.amazon.it/* https://*.amazon.nl/* https://*.amazon.pl/* https://*.amazon.sa/* https://*.amazon.se/* https://*.amazon.com.tr/* https://*.amazon.sg/* https://*.amazon.com.au/* https://*.amazon.co.jp/* https://*.sellerassistant.app/

User Reviews

by 退出*****, 2025-03-31
by 敬念*****, 2025-02-26
by Fi*****, 2023-12-01
View all user reviews ›

Is Seller Assistant Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Seller Assistant requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: amazon.com, amazon.ca, com.br, com.mx, amazon.ae, amazon.de, amazon.eg, amazon.es, amazon.fr, co.uk, amazon.in, amazon.it, amazon.nl, amazon.pl, amazon.sa, amazon.se, com.tr, amazon.sg, com.au, co.jp, sellerassistant.app
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Seller Assistant is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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