diff --git a/components/files/__tests__/files-plugin-surfaces.test.tsx b/components/files/__tests__/files-plugin-surfaces.test.tsx
index c2bcee520..93359c09d 100644
--- a/components/files/__tests__/files-plugin-surfaces.test.tsx
+++ b/components/files/__tests__/files-plugin-surfaces.test.tsx
@@ -17,6 +17,11 @@ import type { FileResourceView } from '@/lib/plugin-types';
 vi.mock('@/lib/debug', () => ({ debug: { log: () => {}, warn: () => {}, error: () => {} } }));
 vi.mock('@/components/settings/share-collection-dialog', () => ({ ShareCollectionDialog: () => null }));
 vi.mock('@/components/plugins/plugin-iframe-slot', () => import('@/components/plugins/__tests__/fake-slot-offer'));
+const device = vi.hoisted(() => ({ isMobile: false }));
+vi.mock('@/hooks/use-media-query', async (importOriginal) => ({
+  ...(await importOriginal<typeof import('@/hooks/use-media-query')>()),
+  useIsMobile: () => device.isMobile,
+}));
 
 const folder = {
   id: 'f-docs', name: 'Documents', serverName: 'Documents', isDirectory: true, contentType: '', contentLength: 0,
@@ -97,6 +102,7 @@ function rowOf(name: string): HTMLElement {
 const dispatch = vi.fn().mockResolvedValue(undefined);
 
 beforeEach(() => {
+  device.isMobile = false;
   localStorage.clear();
   dispatch.mockClear();
   setActionDispatcher(dispatch);
@@ -159,6 +165,26 @@ describe('file-actions', () => {
     expect(context.files.map((f) => f.id)).toEqual(['f-notes', 'f-photo']);
   });
 
+  it('puts them behind one more button in the phone selection toolbar', async () => {
+    device.isMobile = true;
+    act(() => setPluginActions('ocr', 'OCR', 'file-actions', [
+      { id: 'archive', label: 'Archive' },
+      { id: 'read-text', label: 'Read text', mimeTypes: ['text/'] },
+    ]));
+    renderBrowser(['notes.txt']);
+
+    const toolbar = screen.getByRole('toolbar', { name: 'selection_actions' });
+    expect(within(toolbar).queryByRole('button', { name: 'Archive' })).toBeNull();
+    const more = within(toolbar).getByRole('button', { name: 'more_actions' });
+    // Not in the row that scrolls sideways, where it could end up out of sight.
+    expect(more.closest('.overflow-x-auto')).toBeNull();
+    fireEvent.click(more);
+    expect(await screen.findByRole('menuitem', { name: 'Read text' })).toBeInTheDocument();
+    await act(async () => { fireEvent.click(screen.getByRole('menuitem', { name: 'Archive' })); });
+    const context = dispatch.mock.calls[0][3] as { files: FileResourceView[] };
+    expect(context.files.map((f) => f.id)).toEqual(['f-notes']);
+  });
+
   it('filters the toolbar by the type of a single selected file', () => {
     act(() => setPluginActions('ocr', 'OCR', 'file-actions', [{ id: 'read-text', label: 'Read text', mimeTypes: ['text/'] }]));
     renderBrowser(['photo.png']);
diff --git a/components/files/files-header.tsx b/components/files/files-header.tsx
index b39ccfd94..9fdb298cc 100644
--- a/components/files/files-header.tsx
+++ b/components/files/files-header.tsx
@@ -138,8 +138,10 @@ export function FilesHeader({
           <ToolButton icon={Scissors} label={t("cut")} onClick={selection.onCut} compact />
           <ToolButton icon={Copy} label={t("copy")} onClick={selection.onCopy} compact />
           <ToolButton icon={Trash2} label={t("delete")} onClick={selection.onDelete} compact destructive />
-          <SelectionPluginActions files={selection.pluginFiles} mimeType={selection.pluginMimeType} />
+          {!compact && <SelectionPluginActions files={selection.pluginFiles} mimeType={selection.pluginMimeType} />}
         </div>
+        {/* Outside the scrolling row, so the "more" button never scrolls out of sight. */}
+        {compact && <SelectionPluginActions files={selection.pluginFiles} mimeType={selection.pluginMimeType} overflow />}
         <div className="flex-1" />
         <DetailsToggle showDetails={showDetails} onToggle={onToggleDetails} label={t("details")} />
       </div>
@@ -434,8 +436,11 @@ function SortItem({ label, checked, onClick, icon: Icon }: {
   );
 }
 
-/** Plugin buttons in the selection toolbar, icon-only like the app's own. */
-function SelectionPluginActions({ files, mimeType }: { files: FileResourceView[]; mimeType?: string }) {
+/**
+ * Plugin buttons in the selection toolbar, icon-only like the app's own. On
+ * phones the toolbar has no room for them: they go behind one "more" button.
+ */
+function SelectionPluginActions({ files, mimeType, overflow }: { files: FileResourceView[]; mimeType?: string; overflow?: boolean }) {
   const context = useMemo(() => ({ files }), [files]);
-  return <PluginActions surface="file-actions" context={context} mimeType={mimeType} compact className="flex-nowrap gap-0.5" />;
+  return <PluginActions surface="file-actions" context={context} mimeType={mimeType} compact overflow={overflow} className="flex-nowrap gap-0.5 flex-shrink-0" />;
 }