To use these add-ons, you'll need to download Firefox.

Firefox Browser Add-ons

Extensions
Themes
- for Firefox
- Dictionaries & Language Packs
- Other Browser Sites
- Add-ons for Android

Search

Add-ons developer

Osternachten

User since: 12 Mar 2025
Number of add-ons: 3

Report this user

Extensions by Osternachten

There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet

Themes by Osternachten

There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet
There are no ratings yet

Go to Mozilla's homepage

Add-ons

About
Firefox Add-ons Blog
Extension Workshop
Developer Hub
Developer Policies
Community Blog
Forum
Report a bug
Review Guide

Browsers

Desktop
Mobile
Enterprise

Products

Browsers
VPN
Relay
Monitor
Pocket

Twitter (@firefox)
Instagram (Firefox)
YouTube (firefoxchannel)

Privacy
Cookies
Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike Licence v3.0 or any later version.

Change language