1 files changed, 7 insertions, 0 deletions
diff --git a/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md b/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md
index 85be613392..45df09249a 100644
--- a/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md
+++ b/toolkit/components/messaging-system/schemas/TriggerActionSchemas/index.md
@@ -44,6 +44,7 @@ let patterns: string[];
 * [formAutofill](#formautofill)
 * [contentBlocking](#contentblocking)
 * [defaultBrowserCheck](#defaultbrowsercheck)
+* [deeplinkedToWindowsSettingsUI](#deeplinkedtowindowssettingsui)
 * [captivePortalLogin](#captiveportallogin)
 * [preferenceObserver](#preferenceobserver)
 * [featureCalloutCheck](#featurecalloutcheck)
@@ -161,6 +162,12 @@ let willShowDefaultPrompt = boolean | undefined;
 }
 ```
 
+### `deeplinkedToWindowsSettingsUI`
+
+Triggers when the user has indicated they want to set Firefox as the default web
+browser and interaction with Windows Settings is necessary to finish setting
+Firefox as default.
+
 ### `captivePortalLogin`
 
 Happens when the user successfully goes through a captive portal authentication flow.