firefox policies.json, preference not allowed for stability reasons

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i am making a policies.Json file for firefox, in order to set some different settings in the preferences configuration, and i have kind of things like that :

        "security.insecure_field_warning.contextual.enabled": {
            "Value": false,
            "Status": "locked"
        },
        "pref.general.disable_button.default_browser": {
            "Value": true,
            "Status": "locked"
        },
        "browser.shell.checkDefaultBrowser": {
            "Value": false,
            "Status": "locked"
        },
        ...
        ...
        ...

However, some preferences seem to be rejected by firefox, as they return in about:policies#errors :
"Unable to set preference ( name ). Preference not allowed for stability reasons".
I know the risks and really need to apply these preference to firefox.
Is there a solution to force firefox to apply these settings? Any help would be appreciated.
I currently use firefox 102.14.0esr .

I tried to delete some js files like prefs.js from my firefox profile and kind of things that could take the priority over my json file.
I can confirm the half of the json is well working and shows no errors, but a half does.
I hope there is a solution to force firefox to apply my settings