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I want to code a Firefox Extension with the Webextension API. The Extension should deactivate HTML Canvas, WebGL, localStorage etc for privacy reasons. I cant find any way how the Extension can change these preferences, anybody have some hints for me how i can do this?

Thanks.

NewInFireFox
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  • Possible duplicate of [Access old-style Firefox extension's preferences when porting to WebExtensions](https://stackoverflow.com/questions/48650400/access-old-style-firefox-extensions-preferences-when-porting-to-webextensions) – Smile4ever May 21 '18 at 14:54
  • But there i cant find a soulution :/ – NewInFireFox May 21 '18 at 17:31
  • As I said in that answer, you will need to make an external tool which communicates with native messaging, modifying the preferences file on disk. – Smile4ever May 22 '18 at 08:01
  • The possible duplicate is not the correct duplicate. This is the question (and answer) you are looking for: https://stackoverflow.com/questions/50023416/is-it-possible-to-create-a-firefox-webextension-that-changes-aboutconfig-settin/50024435 – Smile4ever May 22 '18 at 12:07

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