Download Petra

Name: Petra
Author: Petra Labs

By: Petra Labs

Download Petra (current and past versions) for Firefox

Latest Version: 0.2.1 Updated: 6 months ago Removed

Ready to install?

Petra is available for download. Be careful when installing it.

View source code

Daily users

5.0

21 ratings

Total downloads

Available versions

You can find the current and older versions of Petra 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	Download count	Timestamp
0.2.1	XPI · ZIP · Source code	19.83KB	0	2025-12-13

2025-12-13 · 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 Petra ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Petra ZIP file from step 1. Petra is now installed on your browser.