AdBlocker Ultimate

Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.

AdBlocker Ultimate is available to install from Firefox Browser Add-ons and for download from this page. It has 1,785,497 active users The latest version is 3.8.26, and it was published 6 months ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 48 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of AdBlocker Ultimate 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
3.8.26 XPI · ZIP · Source code 6.89M 13 2024-07-18
3.8.25 Paid users only 6.89M 11 2024-05-14
3.8.21 Paid users only 6.85M 8 2024-02-19
3.8.18 Paid users only 6.86M 0 2024-02-12
3.8.14 Paid users only 6.63M 5 2023-11-29
3.8.10 Paid users only 6.58M 0 2023-11-15
3.8.7 Paid users only 6.58M 1 2023-10-24
3.8.6 Paid users only 6.57M 0 2023-10-16
3.7.28 Paid users only 6.16M 4 2023-05-25
3.7.27 Paid users only 6.05M 0 2023-05-15
3.7.26 Paid users only 6.39M 0 2023-05-04
3.7.21 Paid users only 6.16M 4 2023-01-25
3.7.19 Paid users only 6.17M 2 2022-09-30
3.7.18 Paid users only 6.05M 0 2022-05-25

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 AdBlocker Ultimate ZIP file from step 1. AdBlocker Ultimate is now installed on your browser.