json preferences (via Group Policy) are ignored by browser
Malte Riemer
Hi,
we use the Windows Group Policy für configurating Firefox. Not every conf is possible via that way. So we would like to use the group policy settings “Mozilla/Firerox/Preferences” with some json-Stuff in it additionally.
But the json-configuration is ignored by the browser.
When I go to “about:policies#errors” the following error is shown:
“Unable to set preference policies. Preference not allowed for stability reasons.”
Any idea why?
We use 102.12.0esr (32-Bit) Firefox.
Best regards
Malte
Mike Kaply
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Malte Riemer
I just tried to move the stuff from user.js to that preferences json-field.
For testing I tried this:
{
"policies": {
"BlockAboutAddons": true
}
}
The mentioned error displayed aftermath.
In future we would like to add these settings to that json-field and give up the user.js:
user_pref("browser.bookmarks.file", "X:\\Firefox\\Bookmarks");
user_pref("browser.bookmarks.autoExportHTML", true);
user_pref("browser.places.importBookmarksHTML", true);
user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false);
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
user_pref("browser.newtabpage.activity-stream.feeds.snippets", false);
user_pref("browser.newtabpage.activity-stream.prerender", false);
user_pref("browser.newtabpage.activity-stream.showSearch", false);
user_pref("browser.newtabpage.activity-stream.showTopSites", false);
user_pref("security.ssl.require_safe_negotiation", true);
user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
user_pref("extensions.formautofill.creditCards.enabled", false);
user_pref("extensions.formautofill.creditCards.available", false);
Best regards
Malte
Von: Mike Kaply <mka...@mozilla.com>
Gesendet: Mittwoch, 21. Juni 2023 21:03
An: Malte Riemer <Rieme...@citeq.de>
Cc: enter...@mozilla.org
Betreff: Re: [Mozilla Enterprise] json preferences (via Group Policy) are ignored by browser
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Gausmann, Thomas
Hallo Malte,
ich habe Dir unsere aktuelle policies.json angehängt. Die
benutzen wir seit Jahren mit Firefox ESR 64bit unter Windows 10 /
11. Die ist zwar auf unsere spezielle FF- und Windows-Installation
angepasst, möge Dir aber als Beispiel dienen. Du mußt also jede
Zeile prüfen, ob sie für Euch so einsetzbar ist.
Die Syntax für user_pref findest Du ab "_Preferences".
Addons blockieren wir nicht grundsätzlich, fügen aber einige
wenige immer hinzu.
Für die Bearbeitung und den Syntaxcheck benutzen wir die
Notepad++-Plugins JSTools und "Json Tools"
English (in short):
Attached you will find our policies.json. Used with Firefox ESR 64 bit under Windows 10 / 11. Matched for our special FF- and Windows-Installation. You may use it as a sample. You have to check every line for your intended use.
Syntax for user_pref => "_Preferences".
Addons are not blocked. Some are installed.
Grüße aus dem Münsterland
Thomas
To view this discussion on the web visit https://groups.google.com/a/mozilla.org/d/msgid/enterprise/3292d53219f5465fbba66d405829c1d2%40citeq.de.
Mike Kaply
user_pref("security.ssl.require_safe_negotiation", true);
user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);