Download FirefoxOxygen (current and past versions) for Firefox
Latest Version:
2.0 Updated:
7 years ago Removed
Ready to install?
FirefoxOxygen is available for download. Be careful when installing it.
Available versions
You can find the current and older versions of FirefoxOxygen 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 |
|---|---|---|---|---|
| 2.0 | XPI · ZIP · Source code | 24.29KB | 0 | 2019-05-13 |
2.0 24.29KB
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 FirefoxOxygen ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File

- Select the FirefoxOxygen ZIP file from step 1. FirefoxOxygen is now installed on your browser.
Best FirefoxOxygen Alternatives
Here are some Firefox add-ons that are similar to FirefoxOxygen:
Kubuntu_Oxygen
limplinux91
KDEforFox
Firefox user 14349107
Kubuntu_Oxygen1
limplinux91
Kubuntu B.E.
be11
Oxygen Cold 4.5 1280px
Ds342
KDE old-default Oxygen
Karatek_HD
Oxygen For KDE
Michael
KDE
orroneo
KDE Colors ChromeOS
Nathan
KDE Classic Oxygen (Dark)
Michael
KDE Plasma Breeze Dark (Color)
starmatt
Firefox 4 Blue-Orange
Albert