CanvasBlocker

Author(s):



If you face problems with display of direct image URL or plugins on Firefox ESR (52) please try version 0.4.5a and have closer look at the release notes.

This add-on allows users to prevent websites from using the Javascript canvas API to fingerprint them. Users can choose to block the canvas API entirely on some or all websites (which may break some websites) or just block or fake its fingerprinting-friendly readout API. More information on canvas fingerprinting can be found at http://www.browserleaks.com/canvas.

The different block modes are:

Please report issues and feature requests at https://github.com/kkapsner/CanvasBlocker/issues

Download files:

canvasblocker-0.1.1-signed.xpi
canvasblocker-0.1.1.1-signed.xpi
canvasblocker-0.1.2.1-signed.xpi
canvasblocker-0.1.3.1-signed.xpi
canvasblocker-0.1.4.1-signed.xpi
canvasblocker-0.1.5-Release.1-signed.xpi
canvasblocker-0.1.5.1-Release.1-signed.xpi
canvasblocker-0.1.6-Release.xpi
canvasblocker-0.1.7-Release.xpi
canvasblocker-0.1.8-Release.xpi
canvasblocker-0.2.0-Release.xpi
canvasblocker-0.2.1-Release.xpi
canvasblocker-0.2.2-Release.xpi
canvasblocker-0.3.0-Release.xpi
canvasblocker-0.3.1-Release.xpi
canvasblocker-0.3.2-Release.xpi
canvasblocker-0.3.3-Release.xpi
canvasblocker-0.3.4-Release.xpi
canvasblocker-0.3.5-Release.xpi
canvasblocker-0.3.6-Release.xpi
canvasblocker-0.3.7-Release.xpi
canvasblocker-0.3.8-Release.xpi


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