diff --git a/packages/playwright-core/src/server/firefox/ffPage.ts b/packages/playwright-core/src/server/firefox/ffPage.ts
index 37965b642e..181b88b2ba 100644
--- a/packages/playwright-core/src/server/firefox/ffPage.ts
+++ b/packages/playwright-core/src/server/firefox/ffPage.ts
@@ -533,7 +533,15 @@ export class FFPage implements PageDelegate {
   }
 
   async setInputFilePaths(handle: dom.ElementHandle<HTMLInputElement>, files: string[]): Promise<void> {
-    throw new Error('Not implemented');
+    await Promise.all([
+      this._session.send('Page.setFileInputFiles', {
+        frameId: handle._context.frame._id,
+        objectId: handle._objectId,
+        files
+      }),
+      handle.dispatchEvent('input'),
+      handle.dispatchEvent('change')
+    ]);
   }
 
   async adoptElementHandle<T extends Node>(handle: dom.ElementHandle<T>, to: dom.FrameExecutionContext): Promise<dom.ElementHandle<T>> {
diff --git a/packages/playwright-core/src/server/webkit/wkPage.ts b/packages/playwright-core/src/server/webkit/wkPage.ts
index 500d72da6c..1e89ec76be 100644
--- a/packages/playwright-core/src/server/webkit/wkPage.ts
+++ b/packages/playwright-core/src/server/webkit/wkPage.ts
@@ -936,8 +936,13 @@ export class WKPage implements PageDelegate {
     await this._session.send('DOM.setInputFiles', { objectId, files: protocolFiles });
   }
 
-  async setInputFilePaths(handle: dom.ElementHandle<HTMLInputElement>, files: string[]): Promise<void> {
-    throw new Error('Not implemented');
+  async setInputFilePaths(handle: dom.ElementHandle<HTMLInputElement>, paths: string[]): Promise<void> {
+    const pageProxyId = this._pageProxySession.sessionId;
+    const objectId = handle._objectId;
+    await Promise.all([
+      this._pageProxySession.connection.browserSession.send('Playwright.grantFileReadAccess', { pageProxyId, paths }),
+      this._session.send('DOM.setInputFiles', { objectId, paths })
+    ]);
   }
 
   async adoptElementHandle<T extends Node>(handle: dom.ElementHandle<T>, to: dom.FrameExecutionContext): Promise<dom.ElementHandle<T>> {
diff --git a/tests/browsertype-connect.spec.ts b/tests/browsertype-connect.spec.ts
index cfc95de0c7..6c39849448 100644
--- a/tests/browsertype-connect.spec.ts
+++ b/tests/browsertype-connect.spec.ts
@@ -16,6 +16,7 @@
  */
 
 import fs from 'fs';
+import os from 'os';
 import * as path from 'path';
 import { getUserAgent } from '../packages/playwright-core/lib/utils/utils';
 import WebSocket from 'ws';
@@ -574,8 +575,8 @@ test('should fulfill with global fetch result', async ({ browserType, startRemot
   expect(await response.json()).toEqual({ 'foo': 'bar' });
 });
 
-test('should upload large file', async ({ browserType, startRemoteServer, server, browserName }, testInfo) => {
-  test.skip(browserName !== 'chromium');
+test('should upload large file', async ({ browserType, startRemoteServer, server, browserName, isMac }, testInfo) => {
+  test.skip(browserName === 'webkit' && isMac && parseInt(os.release(), 10) < 20, 'WebKit for macOS 10.15 is frozen and does not have corresponding protocol features.');
   test.slow();
   const remoteServer = await startRemoteServer();
   const browser = await browserType.connect(remoteServer.wsEndpoint());
diff --git a/tests/page/page-set-input-files.spec.ts b/tests/page/page-set-input-files.spec.ts
index dffafc3e72..2541db9f62 100644
--- a/tests/page/page-set-input-files.spec.ts
+++ b/tests/page/page-set-input-files.spec.ts
@@ -20,6 +20,7 @@ import { attachFrame } from '../config/utils';
 
 import path from 'path';
 import fs from 'fs';
+import os from 'os';
 import formidable from 'formidable';
 
 it('should upload the file', async ({ page, server, asset }) => {
@@ -36,8 +37,8 @@ it('should upload the file', async ({ page, server, asset }) => {
   }, input)).toBe('contents of the file');
 });
 
-it('should upload large file', async ({ page, server, browserName }, testInfo) => {
-  it.skip(browserName !== 'chromium');
+it('should upload large file', async ({ page, server, browserName, isMac }, testInfo) => {
+  it.skip(browserName === 'webkit' && isMac && parseInt(os.release(), 10) < 20, 'WebKit for macOS 10.15 is frozen and does not have corresponding protocol features.');
   it.slow();
   await page.goto(server.PREFIX + '/input/fileupload.html');
   const uploadFile = testInfo.outputPath('200MB.zip');