---
title: "Browser extension: red flags on Flippa, Empire Flippers and Acquire.com listings"
url: https://firstpassmemo.com/extension/
updated: 2026-10-16
publisher: FirstPass Memo (hello@firstpassmemo.com)
---

Browser extension

# See red flags on the listing page itself

The FirstPass Memo extension reads the listing you are looking at on Flippa, Empire Flippers or Acquire.com and shows a small panel: payback in months, the asking multiple against comparable listings, and every red flag that fired, each with the question to send the seller.

Download the extension (.zip, 21 KB) (https://firstpassmemo.com/get/firstpass-extension.zip)

## Install (Chrome, Edge, Brave, Arc)

- Download the zip above and unzip it into a folder.

- Open chrome://extensions and switch on Developer mode (top right).

- Click Load unpacked and choose the unzipped folder.

- Open any listing. The panel appears bottom right; click its header to fold it away.

A Chrome Web Store version is planned; until then the unpacked install above takes about a minute.

## Privacy

- It runs the same open rules as the web checker (https://firstpassmemo.com/checker/) (rules.json (https://firstpassmemo.com/rules.json)) inside your browser.

- No network requests, no analytics, no storage, no permissions beyond reading the three marketplace sites. The code is plain, unminified JavaScript in the zip: read it before you install.

- Links in the panel open firstpassmemo.com only when you click them.

## What it cannot do

It only reads what the page shows. If the price or profit is hidden (classified listings, signed-NDA data), it says so and points you to the checker, where you can type the numbers yourself. Flags are prompts for questions, not findings.

Want a person to look at a specific listing? A first-pass memo is $79, paid after delivery. (https://firstpassmemo.com/#beta)

Informational screening of seller-published figures against 33 published rules (all rules (https://firstpassmemo.com/flags/)). Not investment, legal, tax or valuation advice, and not verification. Not affiliated with Flippa, Empire Flippers or Acquire.com.

## Looking at a specific listing? Get a full memo — $79, pay after delivery.

Paste the link; your memo arrives within 24 hours (Mon–Fri). $79, pay after delivery: we send the memo first, then an invoice. Human quick reviews cost $199–$390.

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FirstPass Memo is informational screening, not investment, legal, tax, accounting or valuation advice, and not an audit. Seller figures are not independently verified. HTML version: https://firstpassmemo.com/extension/