Cooling signalNo paid features detectedLow-risk permissions

Harbor Freight Coupons - HFQPDB

Automatically find and display harbor freight coupons on their website from hfqpdb.com

Users297Current public install base

Rating5.0Store average score

Reviews1Public review volume

Manifest versionV3Extension platform version

7-day growth-4Net users gained this week

7-day growth rate-1.33%Relative weekly velocity

Preview

Harbor Freight Coupons - HFQPDB Media preview

3 assets

Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

Rating trend

30-day rating change

Track rating movement over time to see whether quality signals remain stable.

30-day rating change

Start

5.00

Latest

5.00

30-day rating change

0.00

2026年6月17日2026年6月23日

Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthGrowing

+4+1.37%

7-day growthDeclining

-4-1.33%

30-day growthDeclining

-13-4.19%

Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.6.2

ManifestV3

Size38.77KiB

Languages1English (United States)

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

Never pay list price at harbor freight again!

Searches hfqpdb.com database for best coupon by item number while browsing harbor freight's website and displays the price on the webpage next to the retail price.

Changelog:

9/2/2025:

- Added support for displaying coupons on the cart page

- Added expiration date to coupon display

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

The Chrome Web Store shows 1 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

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AI product read

Automatically find and display Harbor Freight coupons on the Harbor Freight website.

Helps users save money by automatically identifying and showing the best available coupons for items they are viewing or have in their cart.

User browses harborfreight.com -> Extension detects product SKU -> Extension sends SKU to hfqpdb.com API -> API returns best coupon data -> Extension injects coupon UI element next to the price.

Target users: Shoppers on Harbor Freight who want to save money on tools and equipment.

The extension relies on the external hfqpdb.com service; if that service goes down or changes its API, the extension will break. We cannot verify the security or privacy practices of hfqpdb.com from the extension source alone.

Monetization

No paid features detected

The extension is free and does not gate any features behind a paywall. It automatically fetches coupons from hfqpdb.com. There are no references to Stripe, PayPal, subscriptions, or license keys in the source code. The 'pro' keyword matches in the static scan were false positives (e.g., 'product', 'process').

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension does not implement any login mechanism, nor does it require a Harbor Freight account to function. It operates by scraping product SKUs from public product pages and querying the hfqpdb.com API for coupon data. The use of sessionStorage in coupons.js (lines 450, 458, 469) is strictly for local state management (tracking the last page URL to clear stale markers), not for authentication.

Permission risk

Low-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

未命中敏感权限或广域站点访问规则

Publisher

HFQPDB

Independent publisher

Email: [email protected]
Phone: +16072327646
Address: --

Public contact fields are shown above. Developer portfolio pages are available on paid accounts.

View developer portfolio

Permissions

Host access