How to install extension that can't be disabled?

I am on Linux and I want to install a parent control extension. I also want that it can’t be disabled from addon page. Is there any way to achieve this? Like putting extension in some directory!?

Thanks.

There is not, apart from using enterprise policies to disable add-on management all together, I believe.

Though it may be possible to have an extension that is installed on every startup with policies, not sure.

Either way, see
https://support.mozilla.org/en-US/kb/customizing-firefox-using-policiesjson

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Thanks for the reply. It is possible with Locked Key. Nevertheless, It can be disabled for private mode. There is no method described in the documentation.

At this time I ended up using DisablePrivateBrowsing but this is not the solution. It would be nice If there is a way to lock it for private browsing too.