xpinstall.signatures.required (Firefox ESR 102.10, Firefox ESR only)
```
as well as the following security preferences:
+
| Preference | Type | Default
| --- | --- | ---
| security.default_personal_cert | string | Ask Every Time
| If true, browser will accept TLS 1.0. and TLS 1.1 (Firefox 86, Firefox 78.8).
| security.warn_submit_secure_to_insecure | boolean | true
| If false, no warning is shown when submitting a form from https to http.
-
Using the preference as the key, set the `Value` to the corresponding preference value.