Why Firefox fixed Network.protocol - handler.expose. (Protocol) to 'true' at each startup?

I want to make FF open "file://"-links with Windows Explorer.
It works if I put "Network.protocol - handler.expose.file" false
and "Network.protocol - handler.external.file", true.
But "Network.protocol - handler.expose.file" is missing in the topic: config after a reboot. So I put in my user.js. Now I can see the variable, but its still set to true no matter what happens in my user.js. Why the FF is leading my config?


Try locking Preferences .

Thank you

Tags: Firefox

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