Download Extenssr

Name: Extenssr
Author: Andrei Onea

By: Andrei Onea

Download Extenssr (current and past versions) for Firefox

Latest Version: 3.11.1 Updated: 3 years ago

Ready to install?

Extenssr 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 Extenssr 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
3.11.1	XPI · ZIP · Source code	34.56MB	2	2023-11-03
3.11.0	XPI · ZIP · Source code	22.57MB	0	2023-01-27
3.10.1	XPI · ZIP · Source code	22.95MB	0	2022-08-14
3.9.1	Paid users only	22.95MB	0	2022-08-07
3.6.0	Paid users only	22.46MB	0	2022-07-31

2023-11-03 · 2 downloads

XPI ZIP Source code

2023-01-27 · 0 downloads

XPI ZIP Source code

2022-08-14 · 0 downloads

XPI ZIP Source code

2022-08-07 · 0 downloads

Paid users only

2022-07-31 · 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 Extenssr ZIP file.
In Firefox browser, go to about:addons to open Add-ons Manager
Click on ⚙, Install Add-on From File
Select the Extenssr ZIP file from step 1. Extenssr is now installed on your browser.