diff --git a/conf/firefox-forbidden-policies.js b/conf/firefox-forbidden-policies.js
index 8af49025..62a29cbc 100644
--- a/conf/firefox-forbidden-policies.js
+++ b/conf/firefox-forbidden-policies.js
@@ -78,7 +78,7 @@ lockPref("privacy.fingerprintingProtection", true);
 //lockPref("privacy.fingerprintingProtection", false);
 lockPref(
 	"privacy.fingerprintingProtection.overrides",
-	"+AllTargets,-KeyboardEvents,-CSSPrefersColorScheme,-CSSPrefersReducedMotion,-JSDateTimeUTC,-FontVisibilityBaseSystem",
+	"+AllTargets,-KeyboardEvents,-CSSPrefersColorScheme,-CSSPrefersReducedMotion,-JSDateTimeUTC,-FontVisibilityBaseSystem,-FontVisibilityRestrictGenerics",
 );
 lockPref("browser.display.use_document_fonts", 0);
 //clearPref("privacy.fingerprintingProtection.overrides");
diff --git a/etc/firefox/policies/policies.json b/etc/firefox/policies/policies.json
index 760a2d28..402c38e5 100644
--- a/etc/firefox/policies/policies.json
+++ b/etc/firefox/policies/policies.json
@@ -834,7 +834,7 @@
 				"Comment": "Preference not allowed for stability reasons. :( https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargets.inc - If you adjust this, see also use_document_fonts to not increase fingerprinting surface excessively",
 				"Status": "locked",
 				"Type": "string",
-				"Value": "+AllTargets,-KeyboardEvents,-CSSPrefersColorScheme,-CSSPrefersReducedMotion,-JSDateTimeUTC,-FontVisibilityBaseSystem"
+				"Value": "+AllTargets,-KeyboardEvents,-CSSPrefersColorScheme,-CSSPrefersReducedMotion,-JSDateTimeUTC,-FontVisibilityBaseSystem,-FontVisibilityRestrictGenerics"
 			},
 			"privacy.fingerprintingProtection.pbmode": {
 				"Comment": "Preference not allowed for stability reasons. :(",