fix(manifest): exclude open_in_tab from options_ui for Safari (#2311)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Aaron <aaronklinker1@gmail.com>

packages/wxt/src/core/utils/__tests__/manifest.test.ts

@@ -445,6 +445,28 @@ describe('Manifest Utils', () => {
 
         expect(actual.options_ui).toEqual(expected);
       });
+
+      it('should exclude open_in_tab for safari', async () => {
+        setFakeWxt({
+          config: {
+            manifestVersion: 3,
+            browser: 'safari',
+            outDir,
+          },
+        });
+        const buildOutput = fakeBuildOutput();
+
+        const { manifest: actual } = await generateManifest(
+          [options],
+          buildOutput,
+        );
+
+        expect(actual.options_ui).toEqual({
+          chrome_style: true,
+          page: 'options.html',
+        });
+        expect(actual.options_ui?.open_in_tab).toBeUndefined();
+      });
     });
 
     describe('background', () => {

packages/wxt/src/core/utils/manifest.ts

@@ -333,7 +333,9 @@ function addEntrypoints(
   if (options) {
     const page = getEntrypointBundlePath(options, wxt.config.outDir, '.html');
     manifest.options_ui = {
-      open_in_tab: options.options.openInTab ?? false,
+      ...(wxt.config.browser !== 'safari' && {
+        open_in_tab: options.options.openInTab ?? false,
+      }),
       // @ts-expect-error: Not typed by @wxt-dev/browser, but supported by Firefox
       browser_style:
         wxt.config.browser === 'firefox'