English
Español
Français
Português
日本語
简体中文
한국인
Latest Version:
1.1 Updated:
8 months ago Removed
Ready to install?
System Dark is available for download. Be careful when installing it.
Available versions
You can find the current and older versions of System Dark 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 | XPI · ZIP · Source code | 7.49KB | 0 | 2025-11-17 |
| 1.0 | XPI · ZIP · Source code | 7.48KB | 0 | 2025-11-16 |
1.1 7.49KB
1.0 7.48KB
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 System Dark ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File
- Select the System Dark ZIP file from step 1. System Dark is now installed on your browser.
Best System Dark Alternatives
Here are some Firefox add-ons that are similar to System Dark:
Windows 11 Dark Mode Theme
Faerell
- 0.00 
(0) 
Windows 11 Dark Theme
Hrvoje
7 5.00 (3) 
Dark Start
stahl
- 0.00 (0) 
VS Dark
Victor Samuel
- 4.50 (2) 
Windows 11 Dark Mode
Vulpinus
26 5.00 (1) 
Win11_DarkTheme
Maleandel
- 0.00 (0) 
Windows 11 Edge Dark
AzNate
- 5.00 (1) 
Ubuntu Inspired
Marco Radocchia
- 0.00 (0) 
Win 11 Dark Blue
Fuzzycast
1 1.00 (1) 
22H2 Dark
muhammadreza
1 0.00 (0) 
Complete Dark
cauan
1 0.00 (0)