diff --git a/applets/taskmanager/plugin/backend.cpp b/applets/taskmanager/plugin/backend.cpp
--- a/applets/taskmanager/plugin/backend.cpp
+++ b/applets/taskmanager/plugin/backend.cpp
@@ -116,7 +116,7 @@
 
     const QStringList &jumpListActions = desktopFile.readActions();
 
-    int count = 0;
+    const QLatin1String kde("KDE");
 
     foreach (const QString &actionName, jumpListActions) {
         const KConfigGroup &actionGroup = desktopFile.actionGroup(actionName);
@@ -125,6 +125,16 @@
             continue;
         }
 
+        const QStringList &notShowIn = actionGroup.readXdgListEntry(QStringLiteral("NotShowIn"));
+        if (notShowIn.contains(kde)) {
+            continue;
+        }
+
+        const QStringList &onlyShowIn = actionGroup.readXdgListEntry(QStringLiteral("OnlyShowIn"));
+        if (!onlyShowIn.isEmpty() && !onlyShowIn.contains(kde)) {
+            continue;
+        }
+
         const QString &name = actionGroup.readEntry(QStringLiteral("Name"));
         const QString &exec = actionGroup.readEntry(QStringLiteral("Exec"));
         if (name.isEmpty() || exec.isEmpty()) {
@@ -141,8 +151,6 @@
         connect(action, &QAction::triggered, this, &Backend::handleJumpListAction);
 
         actions << QVariant::fromValue<QAction *>(action);
-
-        ++count;
     }
 
     return actions;