diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 7794809..7ecb740 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -218,12 +218,39 @@ pub fn run() {
 
                     let mut args = vec!["install".to_string()];
                     let display_cmd: String;
+                    let mut temp_manifest_path: Option<PathBuf> = None;
 
                     if use_manifest && manifest_url.is_some() {
                         let url = manifest_url.unwrap();
-                        args.push("--manifest".to_string());
-                        args.push(url.clone());
                         display_cmd = format!("Winget Install (Manifest): {} from {}", task_id, url);
+                        emit_log(&handle, &log_id, &display_cmd, "Downloading remote manifest...", "info");
+
+                        let client = reqwest::Client::new();
+                        match client.get(&url).timeout(std::time::Duration::from_secs(15)).send().await {
+                            Ok(resp) if resp.status().is_success() => {
+                                if let Ok(content) = resp.text().await {
+                                    let temp_dir = std::env::temp_dir();
+                                    let file_name = format!("winget_tmp_{}.yaml", chrono::Local::now().timestamp_millis());
+                                    let local_path = temp_dir.join(file_name);
+                                    if fs::write(&local_path, content).is_ok() {
+                                        args.push("--manifest".to_string());
+                                        args.push(local_path.to_string_lossy().to_string());
+                                        temp_manifest_path = Some(local_path);
+                                    }
+                                }
+                            }
+                            _ => {}
+                        }
+
+                        if temp_manifest_path.is_none() {
+                            emit_log(&handle, &log_id, "Error", "Failed to download or save manifest.", "error");
+                            let _ = handle.emit("install-status", InstallProgress {
+                                id: task_id.clone(),
+                                status: "error".to_string(),
+                                progress: 0.0,
+                            });
+                            continue;
+                        }
                     } else {
                         args.push("--id".to_string());
                         args.push(task_id.clone());