Download oii

Name: oii
Author: Ferry

By: Ferry Add-on

Download oii (current and past versions) for Firefox

Latest Version: 2025.11.1 Updated: a month ago

Ready to install?

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

View source code

1,724

Daily users

5.0

3 ratings

Total downloads

Available versions

You can find the current and older versions of oii 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
2025.11.1	XPI · ZIP · Source code	243.82KB	0	2026-07-06
2025.11.0	XPI · ZIP · Source code	247.90KB	9	2025-12-03
0.4	XPI · ZIP · Source code	245.35KB	1	2025-05-02
0.3	Paid users only	245.27KB	0	2025-02-13

2026-07-06 · 0 downloads

XPI ZIP Source code

2025-12-03 · 9 downloads

XPI ZIP Source code

2025-05-02 · 1 downloads

XPI ZIP Source code

2025-02-13 · 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.