Download Free JSON Formatter

Name: Free JSON Formatter
Author: Andret2344

By: Andret2344 Add-on

Download Free JSON Formatter (current and past versions) for Firefox

Latest Version: 0.2.1 Updated: 14 days ago

Ready to install?

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

View source code

Available versions

You can find the current and older versions of Free JSON Formatter 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
0.2.1	XPI · ZIP · Source code	35.72KB	2026-07-13
0.2.0	XPI · ZIP · Source code	35.66KB	2026-07-12
0.1.0	XPI · ZIP · Source code	26.30KB	2026-07-11

2026-07-13 · 0 downloads

XPI ZIP Source code

2026-07-12 · 0 downloads

XPI ZIP Source code

2026-07-11 · 0 downloads

XPI ZIP Source code

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