Download StreamSync

Name: StreamSync
Author: Valtiks

By: Valtiks

Download StreamSync (current and past versions) for Firefox

Latest Version: 4.3.0 Updated: 5 days ago

Ready to install?

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

View source code

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Total downloads

Available versions

You can find the current and older versions of StreamSync 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
4.3.0	XPI · ZIP · Source code	71.18KB	2026-06-15
4.2.1	XPI · ZIP · Source code	71.18KB	2026-05-17
4.2	XPI · ZIP · Source code	71.25KB	2026-05-03

2026-06-15 · 0 downloads

XPI ZIP Source code

2026-05-17 · 0 downloads

XPI ZIP Source code

2026-05-03 · 0 downloads

XPI ZIP Source code

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