diff --git a/rb/lib/selenium/webdriver/common/driver_extensions/has_log_events.rb b/rb/lib/selenium/webdriver/common/driver_extensions/has_log_events.rb
index 1965466633f08..8acadbe0b8519 100644
--- a/rb/lib/selenium/webdriver/common/driver_extensions/has_log_events.rb
+++ b/rb/lib/selenium/webdriver/common/driver_extensions/has_log_events.rb
@@ -57,6 +57,13 @@ module HasLogEvents
         #
 
         def on_log_event(kind, &block)
+          if browser == :firefox
+            WebDriver.logger.deprecate(
+              'Driver#on_log_event on Firefox',
+              'the script.add_console_message_handler or the script.add_javascript_error_handler methods',
+              id: :on_log_event
+            )
+          end
           raise Error::WebDriverError, "Don't know how to handle #{kind} events" unless KINDS.include?(kind)
 
           enabled = log_listeners[kind].any?
diff --git a/rb/lib/selenium/webdriver/common/driver_extensions/has_network_interception.rb b/rb/lib/selenium/webdriver/common/driver_extensions/has_network_interception.rb
index 3339426157d91..54abcecba87c7 100644
--- a/rb/lib/selenium/webdriver/common/driver_extensions/has_network_interception.rb
+++ b/rb/lib/selenium/webdriver/common/driver_extensions/has_network_interception.rb
@@ -60,6 +60,13 @@ module HasNetworkInterception
         #
 
         def intercept(&)
+          if browser == :firefox
+            WebDriver.logger.deprecate(
+              'Driver#intercept on Firefox',
+              'the new bidi.network.add_intercept method',
+              id: :intercept
+            )
+          end
           @interceptor ||= DevTools::NetworkInterceptor.new(devtools)
           @interceptor.intercept(&)
         end