Download Quackcheck

Name: Quackcheck
Author: Joel

By: Joel Add-on

Download Quackcheck (current and past versions) for Firefox

Latest Version: 1.4.1 Updated: 3 years ago

Ready to install?

Quackcheck is available to install from Firefox Add-ons Store and for download from this page.

View source code

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Total downloads

Available versions

You can find the current and older versions of Quackcheck here. You can download the archived versions or inspect their source codes.

As a free user, you can download up to 3 latest versions.

Upgrade to download older versions

Version	Download	Size	Timestamp
1.4.1	XPI · ZIP · Source code	659.56KB	2023-10-01
1.3.0	XPI · ZIP · Source code	798.75KB	2022-11-28
1.2.0	XPI · ZIP · Source code	795.64KB	2022-09-28
1.1.0	Paid users only	366.93KB	2022-06-16

2023-10-01 · 0 downloads

XPI ZIP Source code

2022-11-28 · 0 downloads

XPI ZIP Source code

2022-09-28 · 0 downloads

XPI ZIP Source code

2022-06-16 · 0 downloads

Paid users only

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.

Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

Download the Quackcheck ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Quackcheck ZIP file from step 1. Quackcheck is now installed on your browser.