# SourceHound

> Inline AI profit estimates on Inline AI profit estimates on Facebook Marketplace, eBay, and ShopGoodwill. See expected profit on every listing as you broFacebook Marketplace, eBay, and ShopGoodwill. See expected profit on every listing as you browse.

Canonical page: [https://chrome-stats.com/d/sourcehound](https://chrome-stats.com/d/sourcehound)

## Overview

- **ID:** `sourcehound`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** SourceHound
- **Category:** shopping
- **Daily users:** 1
- **Version:** 0.1.0
- **Last updated:** 2026-05-21
- **First published:** 2026-05-18
- **Size:** 115 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/sourcehound/)
- **Website:** [https://www.sourcehound.ai](https://www.sourcehound.ai/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/sourcehound/privacy/](https://addons.mozilla.org/firefox/addon/sourcehound/privacy/)

## Description

SourceHound is a reseller's research tool. The browser extension overlays an estimated resale value and expected profit on every listing card as you browse Facebook Marketplace, eBay, and ShopGoodwill — so you can spot profitable inventory before anyone else.

How it works
  • Browse a marketplace normally — no special workflow
  • Every visible listing gets a small badge: 🔥 for great deals, 👍 for maybe, 💩 for skip
  • The badge shows expected profit, margin, and the estimated resale value
  • Click through to act on the deals you like
  • Tap the refresh icon if a seller drops their price while you're on the page
  • Your evaluation history syncs back to your <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/96e64ea140b1c5a7a4fe8d51f9c5dc362b953c84c21b3e5c0de592e8ed0cf39e/http%3A//sourcehound.ai" rel="nofollow">sourcehound.ai</a> dashboard for review

Requires a SourceHound account (free trial available at <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/96e64ea140b1c5a7a4fe8d51f9c5dc362b953c84c21b3e5c0de592e8ed0cf39e/http%3A//sourcehound.ai" rel="nofollow">sourcehound.ai</a>). You stay in control — the extension never bids, buys, or messages sellers. It reads listing cards on the three supported marketplaces only, and sends sanitized metadata (title, price, image URL, listing ID) to our evaluation API.

What the extension does NOT do
  • Read pages outside Facebook Marketplace, eBay, or ShopGoodwill
  • Bid, buy, or message sellers on your behalf
  • Bundle third-party trackers, analytics, or affiliate-link rewriting
  • Collect data about marketplace sellers (no profiles, no contact info, no PII)

Full privacy policy: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/93a3c63a34be72e8f38e83ba337b04820c775752debfbabc563e1f6d4d1f858d/https%3A//www.sourcehound.ai/extension-privacy.html" rel="nofollow">https://www.sourcehound.ai/extension-privacy.html</a>

Supported marketplaces
  • Facebook Marketplace (you must be signed into Facebook)
  • eBay search, browse, and item pages
  • ShopGoodwill search, category, and item pages

## Rankings

- #102,755 — Overall
- #107 — source code
- #149 — source
- #166 — resource

## Permissions and access

### Permissions

- `storage`
- `identity`
- `declarativeNetRequest`
- `https://www.facebook.com/marketplace/*`
- `https://www.ebay.com/*`
- `https://shopgoodwill.com/*`
- `https://www.sourcehound.ai/*`
- `https://*.auth0.com/*`

### Content script matches

- `www.ebay.com`
- `www.facebook.com`
- `shopgoodwill.com`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Request access to the following domains: facebook.com, ebay.com, shopgoodwill.com, sourcehound.ai, auth0.com
- 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).

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Source: [Chrome-Stats](https://chrome-stats.com/d/sourcehound)