Download Worst-case rating

Name: Worst-case rating
Author: Edem Devlet

By: Edem Devlet

Download Worst-case rating (current and past versions) for Firefox

Latest Version: 1.1.0 Updated: 10 days ago

Ready to install?

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

View source code

Daily users

5.0

1 ratings

Total downloads

Available versions

You can find the current and older versions of Worst-case rating 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
1.1.0	XPI · ZIP · Source code	2.29MB	0	2026-06-06
1.0.0	XPI · ZIP · Source code	2.27MB	0	2026-05-28

2026-06-06 · 0 downloads

XPI ZIP Source code

2026-05-28 · 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 Worst-case rating ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Worst-case rating ZIP file from step 1. Worst-case rating is now installed on your browser.