Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of VIN Decoder & Workshop Manual Finder

VIN Decoder & Workshop Manual Finder by Work Shop Manual Org

Decode any VIN, check NHTSA recalls, and find the matching workshop manual. Buyer overlay on eBay, AutoTrader & Cars.com.

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

About this extension
Decode any 17-character VIN to see vehicle specs, open NHTSA recalls, and the matching workshop manual — all in one click.

What it does
  • Paste any VIN — instantly decode the year, make, model, trim, engine, transmission, plant of origin, and 90+ other data points using NHTSA's official vPIC database
  • See every open safety recall reported by NHTSA, color-coded by severity. Each recall links directly to the official NHTSA campaign page
  • View the most-reported owner complaints for that exact vehicle, grouped by component (engine, transmission, brakes, electrical)
  • Get the workshop manual for your specific year, make, and model — full step-by-step procedures, torque specs, wiring diagrams, and fault code lookups

Buyer's overlay on car listings

When you're browsing used cars on eBay Motors, AutoTrader, Cars.com, Facebook Marketplace, or Craigslist, the add-on automatically detects the VIN in the listing and shows a quick verdict:
  • Clean — no open recalls
  • Check — recalls reported, review before buying
  • Caution — serious recalls (airbags, brakes, fuel system)

Spot a problem car before you waste a trip to see it.

Privacy
  • No accounts. No signup, no email, no password
  • No tracking. Zero analytics, zero advertising trackers, zero telemetry
  • No paywalls. All features free, forever
  • VINs are sent to NHTSA only — never to advertisers or third parties

Data sources

All vehicle and recall data comes from the National Highway Traffic Safety Administration (NHTSA) — the official US government source. Coverage is strongest for vehicles sold in the United States.

About

Made by the team at workshopmanuals.org, the world's largest catalog of factory workshop manuals covering 100+ vehicle brands. We built this tool because we wanted a faster way to look up our own cars — and figured we'd give it away free.

Free forever. No ads. No paywalls.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for sites in the craigslist.org domain
  • Access your data for www.ebay.com
  • Access your data for www.facebook.com
  • Access your data for www.autotrader.com
  • Access your data for www.cars.com

Optional permissions:

  • Access your data for vpic.nhtsa.dot.gov
  • Access your data for api.nhtsa.gov
  • Access your data for workshopmanuals.org

Required data collection, according to the developer:

  • Website content
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
Version
1.0.0
Size
31.55 KB
Last updated
10 days ago (May 1, 2026)
Related Categories
  • Privacy & Security
  • Search Tools
  • Shopping
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.