diff --git a/pkg/cmd/extension/command.go b/pkg/cmd/extension/command.go
index 410e96f53..dad4021b6 100644
--- a/pkg/cmd/extension/command.go
+++ b/pkg/cmd/extension/command.go
@@ -46,6 +46,9 @@ func NewCmdExtension(f *cmdutil.Factory) *cobra.Command {
 			An extension cannot override any of the core gh commands. If an extension name conflicts
 			with a core gh command, you can use %[1]sgh extension exec <extname>%[1]s.
 
+			When an extension is executed, gh will check for new versions once every 24 hours and display
+			an upgrade notice. See %[1]sgh help environment%[1]s for information on disabling extension notices.
+
 			For the list of available extensions, see <https://github.com/topics/gh-extension>.
 		`, "`"),
 		Aliases: []string{"extensions", "ext"},
diff --git a/pkg/cmd/root/help_topic.go b/pkg/cmd/root/help_topic.go
index 4359e4212..9ae2c5c86 100644
--- a/pkg/cmd/root/help_topic.go
+++ b/pkg/cmd/root/help_topic.go
@@ -87,12 +87,12 @@ var HelpTopics = []helpTopic{
 			the number of columns available in the current viewport.
 
 			%[1]sGH_NO_UPDATE_NOTIFIER%[1]s: set to any value to disable GitHub CLI update notifications.
-			By default, gh checks for new releases once every 24 hours and displays an upgrade notice on standard
-			error if a newer version was found.
+			When any command is executed, gh checks for new versions once every 24 hours.
+			If a newer version was found, an upgrade notice is displayed on standard error.
 
 			%[1]sGH_NO_EXTENSION_UPDATE_NOTIFIER%[1]s: set to any value to disable GitHub CLI extension update notifications.
-			By default, gh checks for new releases once every 24 hours and displays an upgrade notice on standard
-			error if a newer version was found.
+			When an extension is executed, gh checks for new versions for the executed extension once every 24 hours.
+			If a newer version was found, an upgrade notice is displayed on standard error.
 
 			%[1]sGH_CONFIG_DIR%[1]s: the directory where gh will store configuration files. If not specified,
 			the default value will be one of the following paths (in order of precedence):