There are a couple of preferences associated with the Remote Agent:
Defines the remote protocols that are active. Available protocols are,
WebDriver BiDi (1), and CDP (2). Multiple protocols can be activated
at the same time by using bitwise or with the values. Defaults to 3 (WebDriver
BiDi and CDP).
Defines if WebDriver BiDi experimental commands and events are available for usage.
Defaults to true in Nightly builds, and false otherwise.
Defines the verbosity of the internal logger. Available levels
are, in descending order of severity, Trace, Debug, Config,
Info, Warn, Error, and Fatal. Note that the value is
treated case-sensitively.
Defines whether long log messages should be truncated. Defaults to true.
By default remote protocols attempts to set a range of preferences deemed
suitable in automation when it starts. These include the likes of
disabling auto-updates, Telemetry, and first-run UX. Set this preference to
false to skip setting those preferences, which is mostly useful for internal
Firefox CI suites.
The user preference file takes precedence over the recommended preferences, meaning any user-defined preference value will not be overridden.