# Profit margin calculator > Legendary margin profit calculator extension now available on Firefox. Canonical page: [https://chrome-stats.com/d/profit-margin-calculator](https://chrome-stats.com/d/profit-margin-calculator) ## Overview - **ID:** `profit-margin-calculator` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Removed - **Publisher:** Alex S. - **Version:** 1.0.0 - **Last updated:** 2025-08-28 - **First published:** 2025-08-25 - **Size:** 1.12 MB - **Data as of:** 2025-08-29 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/profit-margin-calculator/) ## Description The Legendary Margin Profit Calculator extension is now available on Firefox — bringing powerful, lightning-fast profit margin calculations directly to your browser. Designed for e-commerce sellers, freelancers, and financial professionals, this must-have tool lets you instantly calculate costs, profits, and margins with precision, right from any product page. Whether you're sourcing on Amazon, eBay, or Alibaba, the extension analyzes prices in real time, factors in fees, shipping, taxes, and currency conversion, and delivers accurate net profit insights with a single click. Say goodbye to manual spreadsheets and hello to smarter, faster decision-making. Trusted by thousands across Chrome, it's now optimized for Firefox users — seamless, secure, and built for performance. Upgrade your workflow today with the Legendary Margin Profit Calculator on Firefox. https://github.com/codeofrelevancy/profit-margin-calculator ## Safety - **Risk impact:** Very low risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - This permission has no access or impact on the user's system or data, thus carrying no risk. - This extension is not longer available in the store ## Similar extensions and apps - [Simple Calculator](https://chrome-stats.com/d/simple-calculator) — 1.00 / 5 - [ProfitLens Marketplace Overlay](https://chrome-stats.com/d/profitlens-marketplace-overlay) - [Percentage Calculator Menu](https://chrome-stats.com/d/percentage-calculator-menu) — 1 users - [Currency Converter](https://chrome-stats.com/d/currency-converter-ff) — 2,562 users, 3.89 / 5 - [Arbitrage Everywhere](https://chrome-stats.com/d/arbitrage-everywhere) — 1 users - [MagicLinks](https://chrome-stats.com/d/magiclinks) — 32 users, 5.00 / 5 - [Amazon FBA Calculator](https://chrome-stats.com/d/fba-calculator-by-sellersimple) — 41 users - [Currency Converter PK](https://chrome-stats.com/d/currency-converter-pk) — 1.00 / 5 - [Cashback Comparison Wizard](https://chrome-stats.com/d/cashback-comparison-wizard) — 55 users - [Quick Percentage Calculator](https://chrome-stats.com/d/quick-discount-calculator) — 1 users - [Scientific Calculator](https://chrome-stats.com/d/scientific-calculator) — 94 users, 4.00 / 5 - [Quick floating web calculator](https://chrome-stats.com/d/quick-floating-web-calculator) — 2 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/profit-margin-calculator)