Kaspersky Protection 2021

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 401,529 daily users The latest version is 2.11.123.1, and it was published 4 months ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 6 (Only count downloads from Firefox-Stats)

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
Version Download Size Download count Timestamp
2.11.123.1 XPI · ZIP · Source code 347.08K 2 2024-11-18
2.10.9.1 Paid users only 337.33K 0 2024-05-22
2.9.34.35 Paid users only 336.42K 0 2024-04-17
2.8.30.0 Paid users only 311.80K 0 2024-01-30
2.7.177.0 Paid users only 311.78K 0 2023-12-19
2.6.68.0 Paid users only 253.95K 4 2023-08-30
2.5.32.0 Paid users only 249.63K 0 2023-06-16
2.4.33.0 Paid users only 249.17K 0 2023-04-24
2.3.16.0 Paid users only 248.05K 0 2023-01-09
2.2.56.0 Paid users only 247.47K 0 2022-11-23
2.1.42.0 Paid users only 251.08K 0 2022-08-01

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.

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

Install ZIP file

  2. In Firefox browser, go to about:addons to open Add-ons Manager
  3. Click on , then select Install Add-on From File
  4. Select the Kaspersky Protection 2021 ZIP file from step 1. Kaspersky Protection 2021 is now installed on your browser.