Download SteamAuth

Name: SteamAuth
Author: Steamwebapi

By: Steamwebapi

Download SteamAuth (current and past versions) for Firefox

Latest Version: 4.1.5 Updated: 4 months ago

Ready to install?

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

View source code

124

Daily users

5.0

1 ratings

Total downloads

Available versions

You can find the current and older versions of SteamAuth 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	Timestamp
4.1.5	XPI · ZIP · Source code	1.26MB	2026-03-13
4.1.4	XPI · ZIP · Source code	1.23MB	2026-03-08
4.1.3	XPI · ZIP · Source code	1.23MB	2026-02-26
4.1.1	Paid users only	1.22MB	2026-02-24
4.1.0	Paid users only	493.89KB	2026-01-31
4.0.1	Paid users only	486.66KB	2026-01-27
4.0.0	Paid users only	486.88KB	2026-01-08

2026-03-13 · 0 downloads

XPI ZIP Source code

2026-03-08 · 0 downloads

XPI ZIP Source code

2026-02-26 · 0 downloads

XPI ZIP Source code

2026-02-24 · 0 downloads

Paid users only

2026-01-31 · 0 downloads

Paid users only

2026-01-27 · 0 downloads

Paid users only

2026-01-08 · 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.

Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

Download the SteamAuth ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the SteamAuth ZIP file from step 1. SteamAuth is now installed on your browser.