# Seller Assistant > SELLER ASSISTANT — the Ultimate Product Research Firefox Extension for Amazon Sellers. Canonical page: [https://chrome-stats.com/d/seller-assistant-app](https://chrome-stats.com/d/seller-assistant-app) ## Overview - **ID:** `seller-assistant-app` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** Seller Assistant - **Category:** shopping - **Daily users:** 148 - **Rating:** 5.00 / 5 (3 ratings) - **Version:** 1.30.1 - **Last updated:** 2026-04-29 - **First published:** 2021-12-23 - **Size:** 3.45 MB - **Data as of:** 2026-09-13 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/seller-assistant-app/) - **Website:** [https://www.sellerassistant.app/](https://www.sellerassistant.app/) - **Privacy policy:** [https://addons.mozilla.org/firefox/addon/seller-assistant-app/privacy/](https://addons.mozilla.org/firefox/addon/seller-assistant-app/privacy/) ## Description 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. ## Rankings - #9,738 — Overall - #20 — seller - #125 — walmart - #190 — assistant ## Permissions and access ### Permissions - `storage` - `activeTab` ### 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` ### Content script 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` - `www.amazon.in` - `www.amazon.it` - `www.amazon.nl` - `www.amazon.pl` - `www.amazon.sa` - `www.amazon.se` - `www.amazon.com.tr` - `www.amazon.sg` - `www.amazon.com.au` - `www.amazon.co.jp` - `*.amazon.com` - `*.amazon.ca` - `*.amazon.com.br` - `*.amazon.com.mx` - `*.amazon.ae` - `*.amazon.de` - `*.amazon.eg` - `*.amazon.es` - `*.amazon.fr` - `*.amazon.co.uk` - `*.amazon.in` - `*.amazon.it` - `*.amazon.nl` - `*.amazon.pl` - `*.amazon.sa` - `*.amazon.se` - `*.amazon.com.tr` - `*.amazon.sg` - `*.amazon.com.au` - `*.amazon.co.jp` - `sellercentral.amazon.com` - `sellercentral.amazon.ca` - `sellercentral.amazon.com.br` - `sellercentral.amazon.com.mx` - `sellercentral.amazon.ae` - `sellercentral.amazon.de` - `sellercentral.amazon.eg` - `sellercentral.amazon.es` - `sellercentral.amazon.fr` - `sellercentral.amazon.co.uk` - `sellercentral.amazon.in` - `sellercentral.amazon.it` - `sellercentral.amazon.nl` - `sellercentral.amazon.pl` - `sellercentral.amazon.sa` - `sellercentral.amazon.se` - `sellercentral.amazon.com.tr` - `sellercentral.amazon.sg` - `sellercentral.amazon.com.au` - `sellercentral.amazon.co.jp` - `*.sellerassistant.app` ## Safety - **Risk impact:** High risk impact - **Risk likelihood:** Moderate risk likelihood ### Analysis details - 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 - This extension has low user count. Unpopular extensions may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [SellerSprite - The Most Professional Amazon Tool](https://chrome-stats.com/d/sellersprite-amazon-tool) — 20,546 users, 4.41 / 5 - [AmzCompanion — Amazon Stock Checker](https://chrome-stats.com/d/amzcompanion) — 1 users - [SellerBeam](https://chrome-stats.com/d/sellerbeam) — 13 users, 5.00 / 5 - [SellerSight Pro - Amazon Seller Tools](https://chrome-stats.com/d/sellersight-pro) — 1 users - [Helium 10 Plus](https://chrome-stats.com/d/helium-10-plus) — 496 users, 1.00 / 5 - [Papaya: Shopping Pal | Amazon Search Price Filter](https://chrome-stats.com/d/az-clean-shop) — 7 users, 5.00 / 5 - [AmzCompanion — Amazon Stock Checker](https://chrome-stats.com/d/amzcompanion-inventory) — 1 users - [Jungle Scout](https://chrome-stats.com/d/jungle-scout-extension) — 2,943 users, 4.10 / 5 - [Amazon FBA Calculator](https://chrome-stats.com/d/fba-calculator-by-sellersimple) — 44 users - [AliExpert Shopping Assistant](https://chrome-stats.com/d/aliexpert-shopping-assistant) — 11 users - [Shopping Assistant: AliExpress, Amazon, eBay](https://chrome-stats.com/d/shopping-assistant-safe-deal) — 199 users, 4.00 / 5 - [FB Marketplace Analyzer](https://chrome-stats.com/d/fb-marketplace-analyzer) — 2 users, 1.00 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/seller-assistant-app)