Your protection on the Internet with extension from Kaspersky Lab
Kaspersky Protection 2021 is available to install from Firefox Browser Add-ons and for download from this page. It has 428,575 active users The latest version is 2.10.9.1, and it was published 6 months ago.
Install from Firefox Browser Add-onsTotal download count: 4
All available versions
You can find the current and older versions of Kaspersky Protection 2021 here. You can download the archived versions or inspect their source codes.
As a free user, you can only download the latest version.
Upgrade to download older versions
10 versions available for download. Install XPI file
- Simply drag-and-drop the XPI into Firefox to install the add-on.
Install ZIP file
- Download the Kaspersky Protection 2021 ZIP file
- In Firefox browser, go to
about:addons
to open Add-ons Manager - Click on , then select Install Add-on From File
- Select the Kaspersky Protection 2021 ZIP file from step 1. Kaspersky Protection 2021 is now installed on your browser.