CanvasBlocker

Alters some JS APIs to prevent fingerprinting.

CanvasBlocker is available to install from Firefox Browser Add-ons and for download from this page. It has 29,486 daily users The latest version is 1.11, and it was published 2 months ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 12 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of CanvasBlocker 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
1.11 XPI · ZIP · Source code 459.64K 2 2025-01-15
1.10.1 Paid users only 443.34K 7 2024-04-15
1.9 Paid users only 404.03K 3 2023-04-20
1.8 Paid users only 377.21K 0 2022-02-18

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

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