diff --git a/shell/plugins/notifications/NotificationLogic.js b/shell/plugins/notifications/NotificationLogic.js
index 44b048f9..d06e6b26 100644
--- a/shell/plugins/notifications/NotificationLogic.js
+++ b/shell/plugins/notifications/NotificationLogic.js
@@ -56,6 +56,8 @@ function glyphFromHints(hints) {
 function snapshotOf(notification, timestamp) {
   var n = notification || {}
   var id = n.id || 0
+  var expireTimeout = Number(n.expireTimeout || 0)
+  if (!isFinite(expireTimeout) || expireTimeout < 0) expireTimeout = 0
   return {
     id: id,
     originalId: id,
@@ -66,6 +68,7 @@ function snapshotOf(notification, timestamp) {
     image: n.image || "",
     glyph: glyphFromHints(n.hints),
     urgency: n.urgency,
+    expireTimeout: expireTimeout,
     timestamp: timestamp === undefined ? Date.now() : timestamp,
     ref: notification
   }
@@ -83,6 +86,7 @@ function historyEntry(value, normalUrgency) {
     image: e.image || "",
     glyph: e.glyph || "",
     urgency: typeof e.urgency === "number" ? e.urgency : normalUrgency,
+    expireTimeout: 0,
     timestamp: e.timestamp || 0,
     ref: null
   }
diff --git a/shell/plugins/notifications/Service.qml b/shell/plugins/notifications/Service.qml
index 1f0856f8..16970294 100644
--- a/shell/plugins/notifications/Service.qml
+++ b/shell/plugins/notifications/Service.qml
@@ -92,17 +92,27 @@ Item {
   readonly property int historyCap: 100
   property var imageCacheQueue: []
 
-  function durationFor(urgency) {
+  readonly property int lowPopupDuration: 5000
+  readonly property int normalPopupDuration: 8000
+  readonly property int maxPopupDuration: 30000
+
+  function durationFor(urgency, expireTimeout) {
     switch (urgency) {
     case NotificationUrgency.Critical:
       return 0
     case NotificationUrgency.Low:
-      return 3000
+      return Math.min(maxPopupDuration, Math.max(lowPopupDuration, requestedDuration(expireTimeout)))
     default:
-      return 5000
+      return Math.min(maxPopupDuration, Math.max(normalPopupDuration, requestedDuration(expireTimeout)))
     }
   }
 
+  function requestedDuration(expireTimeout) {
+    var seconds = Number(expireTimeout || 0)
+    if (!isFinite(seconds) || seconds <= 0) return 0
+    return Math.round(seconds * 1000)
+  }
+
   // DND bypass: only let through notifications we trust to be intentional
   // and rare.
   //   - omarchy-action: a user-action confirmation toast ("Theme changed",
@@ -237,6 +247,7 @@ Item {
       image: row.image,
       glyph: row.glyph || "",
       urgency: row.urgency,
+      expireTimeout: row.expireTimeout || 0,
       timestamp: row.timestamp
     }
   }
@@ -257,6 +268,14 @@ Item {
   }
 
   function dismissPopup(index) {
+    removePopup(index, "dismiss")
+  }
+
+  function expirePopup(index) {
+    removePopup(index, "expire")
+  }
+
+  function removePopup(index, reason) {
     if (index < 0 || index >= popupModel.count) return
     var entry = popupModel.get(index)
     var ref = entry ? entry.ref : null
@@ -264,7 +283,10 @@ Item {
     popupModel.remove(index)
     if (ref) {
       try {
-        if (ref.tracked) ref.dismiss()
+        if (ref.tracked) {
+          if (reason === "expire" && typeof ref.expire === "function") ref.expire()
+          else ref.dismiss()
+        }
       } catch (e) {
         // Object already torn down by the server — nothing to dismiss.
       }
@@ -555,6 +577,7 @@ Item {
           image: r.image,
           glyph: r.glyph || "",
           urgency: r.urgency,
+          expireTimeout: r.expireTimeout || 0,
           timestamp: r.timestamp
         })
       }
@@ -753,6 +776,7 @@ Item {
             required property string image
             required property string glyph
             required property int urgency
+            required property double expireTimeout
             required property double timestamp
 
             // Each card sizes itself based on mode (text vs media); the slot
@@ -761,7 +785,7 @@ Item {
             Layout.alignment: Qt.AlignRight
             implicitHeight: card.implicitHeight
 
-            readonly property real lifetime: service.durationFor(cardSlot.urgency)
+            readonly property real lifetime: service.durationFor(cardSlot.urgency, cardSlot.expireTimeout)
             property real remainingLifetime: 1.0
             readonly property bool ticking: cardSlot.lifetime > 0 && !card.hovered
 
@@ -774,7 +798,7 @@ Item {
                 cardSlot.remainingLifetime -= 50.0 / cardSlot.lifetime
                 if (cardSlot.remainingLifetime <= 0) {
                   cardSlot.remainingLifetime = 0
-                  service.dismissPopup(cardSlot.index)
+                  service.expirePopup(cardSlot.index)
                 }
               }
             }
diff --git a/test/shell.d/notifications-test.sh b/test/shell.d/notifications-test.sh
index 928c2927..141fce0e 100644
--- a/test/shell.d/notifications-test.sh
+++ b/test/shell.d/notifications-test.sh
@@ -53,7 +53,8 @@ const notification = {
   body: 'Body',
   image: 'file:///tmp/mail.png',
   hints: { 'omarchy-glyph': '!' },
-  urgency: 1
+  urgency: 1,
+  expireTimeout: 1.5
 }
 const snapshot = notifications.snapshotOf(notification, 12345)
 assertDeepEqual(
@@ -67,6 +68,7 @@ assertDeepEqual(
     image: snapshot.image,
     glyph: snapshot.glyph,
     urgency: snapshot.urgency,
+    expireTimeout: snapshot.expireTimeout,
     timestamp: snapshot.timestamp
   },
   {
@@ -79,6 +81,7 @@ assertDeepEqual(
     image: 'file:///tmp/mail.png',
     glyph: '!',
     urgency: 1,
+    expireTimeout: 1.5,
     timestamp: 12345
   },
   'notifications create stable snapshots'