diff --git a/apps/m9zCtrlTty/m9zCtrlTty.go b/apps/m9zCtrlTty/m9zCtrlTty.go
index 5fbaffb..49130ad 100644
--- a/apps/m9zCtrlTty/m9zCtrlTty.go
+++ b/apps/m9zCtrlTty/m9zCtrlTty.go
@@ -85,23 +85,27 @@ func start() {
 		}
 	}
 
-	kioskInfof("starting firefox client goroutine port=%d", g.Config().Server.Port)
-	go func(port int) {
-		time.Sleep(500 * time.Millisecond)
-		runClient(port)
-	}(g.Config().Server.Port)
-	go runStartupChecks()
+	if err := runStartupChecks(); err != nil {
+		kioskErrorf("skip firefox client startup because startup checks failed err=%v", err)
+	} else {
+		kioskInfof("starting firefox client goroutine port=%d", g.Config().Server.Port)
+		go func(port int) {
+			time.Sleep(500 * time.Millisecond)
+			runClient(port)
+		}(g.Config().Server.Port)
+	}
 	core.RunServer()
 }
 
-func runStartupChecks() {
+func runStartupChecks() error {
 	startedAt := time.Now()
 	kioskInfof("startup checks begin")
 	if err := install(); err != nil {
 		kioskErrorf("startup checks failed elapsed=%s err=%v", time.Since(startedAt).Round(time.Millisecond), err)
-		return
+		return err
 	}
 	kioskInfof("startup checks done elapsed=%s", time.Since(startedAt).Round(time.Millisecond))
+	return nil
 }
 
 // TODO Build Cmd  CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o m9zCtrlTty-arm64 .