Download DuSubs: Dual Language Subs

Name: DuSubs: Dual Language Subs
Author: Finn

By: Finn Add-on

Download DuSubs: Dual Language Subs (current and past versions) for Firefox

Latest Version: 1.2.3 Updated: 22 days ago

Ready to install?

DuSubs: Dual Language Subs is available to install from Firefox Add-ons Store and for download from this page.

View source code

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Available versions

You can find the current and older versions of DuSubs: Dual Language Subs 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
1.2.3	XPI · ZIP · Source code	19.69MB	2026-06-23
1.2.2	XPI · ZIP · Source code	19.69MB	2026-06-23
1.2.1	XPI · ZIP · Source code	19.69MB	2026-06-18
1.2.0	Paid users only	28.60MB	2026-06-18
1.1.1	Paid users only	28.59MB	2026-06-17
1.0	Paid users only	28.58MB	2026-06-16

2026-06-23 · 0 downloads

XPI ZIP Source code

2026-06-23 · 0 downloads

XPI ZIP Source code

2026-06-18 · 0 downloads

XPI ZIP Source code

2026-06-18 · 0 downloads

Paid users only

2026-06-17 · 0 downloads

Paid users only

2026-06-16 · 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 DuSubs: Dual Language Subs ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the DuSubs: Dual Language Subs ZIP file from step 1. DuSubs: Dual Language Subs is now installed on your browser.