diff --git a/desktop/app/src/electron/initializeElectron.tsx b/desktop/app/src/electron/initializeElectron.tsx
index 91eb4c4f2..1b32a2373 100644
--- a/desktop/app/src/electron/initializeElectron.tsx
+++ b/desktop/app/src/electron/initializeElectron.tsx
@@ -111,6 +111,18 @@ export function initializeElectron() {
           return undefined;
         });
     },
+    async exportFile(data, {defaultPath} = {}) {
+      const {filePath} = await remote.dialog.showSaveDialog({
+        defaultPath,
+      });
+
+      if (!filePath) {
+        return;
+      }
+
+      await fs.promises.writeFile(filePath, data);
+      return filePath;
+    },
     openLink(url: string) {
       shell.openExternal(url);
     },
diff --git a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
index 062bc967f..5b9c0bb0f 100644
--- a/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
+++ b/desktop/flipper-plugin/src/plugin/FlipperLib.tsx
@@ -35,11 +35,6 @@ export interface FlipperLib {
   DetailsSidebarImplementation?(
     props: DetailSidebarProps,
   ): React.ReactElement | null;
-  showSaveDialog?(options: {
-    defaultPath?: string;
-    message?: string;
-    title?: string;
-  }): Promise<string | undefined>;
   showOpenDialog?(options: {
     defaultPath?: string;
     filter?: {
@@ -47,7 +42,12 @@ export interface FlipperLib {
       name: string;
     };
   }): Promise<string | undefined>;
-  showSelectDirectoryDialog?(defaultPath?: string): Promise<string | undefined>;
+  exportFile(
+    data: string,
+    options?: {
+      defaultPath?: string;
+    },
+  ): Promise<string | undefined>;
   paths: {
     homePath: string;
     appPath: string;
diff --git a/desktop/flipper-plugin/src/test-utils/test-utils.tsx b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
index 85e1e410a..afcf4732d 100644
--- a/desktop/flipper-plugin/src/test-utils/test-utils.tsx
+++ b/desktop/flipper-plugin/src/test-utils/test-utils.tsx
@@ -379,6 +379,7 @@ export function createMockFlipperLib(options?: StartPluginOptions): FlipperLib {
     writeTextToClipboard: jest.fn(),
     openLink: jest.fn(),
     showNotification: jest.fn(),
+    exportFile: jest.fn(),
     paths: {
       appPath: process.cwd(),
       homePath: `/dev/null`,
diff --git a/desktop/flipper-ui-core/src/RenderHost.tsx b/desktop/flipper-ui-core/src/RenderHost.tsx
index 90a187b9d..86770ed29 100644
--- a/desktop/flipper-ui-core/src/RenderHost.tsx
+++ b/desktop/flipper-ui-core/src/RenderHost.tsx
@@ -57,9 +57,18 @@ export interface RenderHost {
   readonly isProduction: boolean;
   readTextFromClipboard(): string | undefined;
   writeTextToClipboard(text: string): void;
-  showSaveDialog?: FlipperLib['showSaveDialog'];
+  /**
+   * @deprecated
+   * TODO: Remove in favor of "exportFile"
+   */
+  showSaveDialog?(options: {
+    defaultPath?: string;
+    message?: string;
+    title?: string;
+  }): Promise<string | undefined>;
   showOpenDialog?: FlipperLib['showOpenDialog'];
   showSelectDirectoryDialog?(defaultPath?: string): Promise<string | undefined>;
+  exportFile: FlipperLib['exportFile'];
   /**
    * @returns
    * A callback to unregister the shortcut
@@ -97,6 +106,9 @@ if (process.env.NODE_ENV === 'test') {
       return '';
     },
     writeTextToClipboard() {},
+    async exportFile() {
+      return undefined;
+    },
     registerShortcut() {
       return () => undefined;
     },
diff --git a/desktop/flipper-ui-core/src/ui/components/FileSelector.tsx b/desktop/flipper-ui-core/src/ui/components/FileSelector.tsx
index 3f593b646..3989e4be6 100644
--- a/desktop/flipper-ui-core/src/ui/components/FileSelector.tsx
+++ b/desktop/flipper-ui-core/src/ui/components/FileSelector.tsx
@@ -52,6 +52,8 @@ const defaultProps: Props = {
   defaultPath: '/',
 };
 
+// TODO: Should we render null in browsers for FileSelector?
+// Do we even need it after decapitation? Every plugin should be using FlipperLib.exportFile which shows a save dialog every time.
 export default function FileSelector({
   onPathChanged,
   placeholderText,
diff --git a/desktop/flipper-ui-core/src/utils/flipperLibImplementation.tsx b/desktop/flipper-ui-core/src/utils/flipperLibImplementation.tsx
index fe28f02b7..89b284a78 100644
--- a/desktop/flipper-ui-core/src/utils/flipperLibImplementation.tsx
+++ b/desktop/flipper-ui-core/src/utils/flipperLibImplementation.tsx
@@ -60,9 +60,8 @@ export function initializeFlipperLibImplementation(
       );
     },
     DetailsSidebarImplementation: DetailSidebarImpl,
-    showSaveDialog: renderHost.showSaveDialog,
+    exportFile: renderHost.exportFile,
     showOpenDialog: renderHost.showOpenDialog,
-    showSelectDirectoryDialog: renderHost.showSelectDirectoryDialog,
     paths: {
       appPath: renderHost.paths.appPath,
       homePath: renderHost.paths.homePath,
diff --git a/desktop/plugins/public/network/request-mocking/NetworkRouteManager.tsx b/desktop/plugins/public/network/request-mocking/NetworkRouteManager.tsx
index 1b77b1e6d..1dfcb443a 100644
--- a/desktop/plugins/public/network/request-mocking/NetworkRouteManager.tsx
+++ b/desktop/plugins/public/network/request-mocking/NetworkRouteManager.tsx
@@ -173,27 +173,9 @@ export function createNetworkManager(
     },
     exportRoutes() {
       getFlipperLib()
-        .showSaveDialog?.({
-          title: 'Export Routes',
+        .exportFile(JSON.stringify(Object.values(routes.get()), null, 2), {
           defaultPath: 'NetworkPluginRoutesExport.json',
         })
-        .then((file) => {
-          if (!file) {
-            return;
-          }
-          fs.writeFile(
-            file,
-            JSON.stringify(Object.values(routes.get()), null, 2),
-            'utf8',
-            (err) => {
-              if (err) {
-                message.error('Failed to store mock routes: ' + err);
-              } else {
-                message.info('Successfully exported mock routes');
-              }
-            },
-          );
-        })
         .catch((e) =>
           console.error('[network] exportRoutes saving failed:', e),
         );