Merlin
QRCode Scanner

QRCode Scanner

Scan and decode QR Code. Internet is not required.

What is QRCode Scanner?
"QRCode Scanner" is an offline QR code decoding add-on for Firefox. It lets you scan and decode QR codes present in a webpage, without an internet connection. Features include manual image adjustments such as clipping, chopping and contrast enhancement, auto-closing result window and an assurance not to track usage. It also supports non-image QR code scanning.
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Merlin
Stats
By: laobubu
Users: 6,385 ▲ 42
Version: 1.2.4resigned1 (Last updated: 2024-04-25)
Creation date: 2013-08-17
Weekly download count: 164
Firefox on Android: Yes
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
Permissions:
  • contextMenus
  • storage
  • tabs
  • <all_urls>
Size: 47.25K
Stats date:

Chrome-Stats Rank

# 1049 ▲ 2
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Other platforms

Not available on Chrome
Not available on Edge
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Chrome-Stats extension
Merlin
Summary
Analyze keywords

Scan and decode QR Code in a webpage. Internet is not required.

  • Offline decoding
  • Never track your usage
  • Support non-image QR Code*
  • You may manually adjust image
    • Clip and chop
    • Enhance contrast (OTSU)
    • Invert color
  • Auto close result window
  • Open Source
[GitHub]: https://github.com/laobubu/QRScaner
  • Disabled by default, see [option] page. Support PDF Viewer: select some text, then right-click it.
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to use with right-click context menu to decode
  • Functional and can use on browser images directly
  • Works well with various QR codes, good overall experience
Cons
  • Does not scan local file images
  • Cannot scan some QR codes without online recognition
  • Some users report errors or non-functionality after system updates
  • Does not support Cyrillic script
  • Cannot scan popup images on web pages
Most mentioned
  • Right-click to decode QR code feature
  • Issues with scanning local or popup images
  • User-friendly and convenient for browser image scanning
  • Problems after updating system or browser
  • Language script support limitations
Recent reviews
by Steveplays, 2024-04-27
by Steveplays, 2024-04-27
For popup windows you do not need "Access your data for all websites"
by Vitaly Zdanevich, 2024-04-25
View all user reviews
Safety
Risk impact

QRCode Scanner is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install QRCode Scanner if you trust the publisher.

Risk likelihood

QRCode Scanner is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details
Screenshots
QRCode Scanner