diff --git a/src/components/SettingsView.tsx b/src/components/SettingsView.tsx
index 2beade1..27ac897 100644
--- a/src/components/SettingsView.tsx
+++ b/src/components/SettingsView.tsx
@@ -802,13 +802,13 @@ runEngineChecks(false);
                     <div className="mac-settings-row settings-network-row">
                       <div className="settings-row-label">
                         <span>Proxy host</span>
-                        <small>Host name, IP address, or URL with scheme.</small>
+                        <small>Host name, IP address, or HTTP proxy URL.</small>
                       </div>
                       <input
                         type="text"
                         value={settings.proxyHost}
                         onChange={(e) => settings.setProxyHost(e.target.value)}
-                        placeholder="127.0.0.1 or socks5://127.0.0.1"
+                        placeholder="127.0.0.1 or http://127.0.0.1"
                         className="app-control settings-network-input font-mono"
                       />
                     </div>
diff --git a/src/store/useDownloadStore.test.ts b/src/store/useDownloadStore.test.ts
index 3466ab2..52d6a3d 100644
--- a/src/store/useDownloadStore.test.ts
+++ b/src/store/useDownloadStore.test.ts
@@ -68,8 +68,9 @@ describe('useDownloadStore', () => {
 
   it('normalizes proxy settings for download dispatch', async () => {
     expect(normalizeCustomProxy('127.0.0.1', 8080)).toBe('http://127.0.0.1:8080');
-    expect(normalizeCustomProxy(' socks5://127.0.0.1 ', 1080)).toBe('socks5://127.0.0.1:1080');
     expect(normalizeCustomProxy('http://proxy.local:9000', 8080)).toBe('http://proxy.local:9000');
+    expect(normalizeCustomProxy(' socks5://127.0.0.1 ', 1080)).toBeNull();
+    expect(normalizeCustomProxy('https://proxy.local', 8443)).toBeNull();
     expect(normalizeCustomProxy('127.0.0.1', NaN)).toBeNull();
 
     expect(await getProxyArgs({
@@ -87,9 +88,9 @@ describe('useDownloadStore', () => {
 
     expect(await getProxyArgs({
       proxyMode: 'custom',
-      proxyHost: 'socks5://127.0.0.1',
+      proxyHost: 'http://127.0.0.1',
       proxyPort: 1080
-    } as ReturnType<typeof useSettingsStore.getState>)).toBe('socks5://127.0.0.1:1080');
+    } as ReturnType<typeof useSettingsStore.getState>)).toBe('http://127.0.0.1:1080');
   });
 
   it('matches site logins by host, wildcard host, path, and full URL patterns', () => {
diff --git a/src/store/useDownloadStore.ts b/src/store/useDownloadStore.ts
index b7e53fb..48e2245 100644
--- a/src/store/useDownloadStore.ts
+++ b/src/store/useDownloadStore.ts
@@ -102,6 +102,7 @@ export const normalizeCustomProxy = (host: string, port: number): string | null
   if (/^[a-z][a-z0-9+.-]*:\/\//i.test(trimmedHost)) {
     try {
       const parsed = new URL(trimmedHost);
+      if (parsed.protocol !== 'http:') return null;
       if (!parsed.port) parsed.port = String(normalizedPort);
       return parsed.toString().replace(/\/$/, '');
     } catch {