chrome/aminda-extensions: disable guest mode as well

etc/opt/chromium/policies/managed/aminda-extensions.json

@@ -229,6 +229,8 @@
 			}
 		}
 	},
+	"BrowserGuestModeEnabled": false,
+	"BrowserGuestModeEnabled_comment": "Extensions are not available for guest mode either just like with incognito. So use Firefox for temporary incognito browsing or even Tor Browser preferably.",
 	"ExtensionManifestV2Availability": 3,
 	"ExtensionManifestV2Availability_comment": "0 for default, 1 for disable, 2 for enable, 3 for those extensions specified here.",
 	"ExtensionSettings": {
@@ -520,6 +522,8 @@
 			"update_url": "https://clients2.google.com/service/update2/crx"
 		}
 	},
+	"IncognitoModeAvailability": 1,
+	"IncognitoModeAvailability_comment": "Disable incognito mode as per Google instructions. There is no other way to force extensions to be loaded in it.",
 	"NetworkPredictionOptions": 2,
 	"PasswordManagerEnabled": false
 }