diff --git a/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts b/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts
index 416f5078ef99c..cfe8fd1778e54 100644
--- a/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts
+++ b/packages/playwright-core/src/server/socksClientCertificatesInterceptor.ts
@@ -313,7 +313,7 @@ export class ClientCertificatesProxy {
     const proxyFromOptions = createProxyAgent(this._proxy);
     if (proxyFromOptions)
       return proxyFromOptions;
-    const proxyFromEnv = getProxyForUrl(`https://${host}:${port}`);
+    const proxyFromEnv = getProxyForUrl(new URL(`https://${host}:${port}`));
     if (proxyFromEnv)
       return createProxyAgent({ server: proxyFromEnv });
   }
diff --git a/packages/playwright-core/src/server/utils/network.ts b/packages/playwright-core/src/server/utils/network.ts
index 1aea7f6d7b986..19577312994ab 100644
--- a/packages/playwright-core/src/server/utils/network.ts
+++ b/packages/playwright-core/src/server/utils/network.ts
@@ -47,7 +47,7 @@ export function httpRequest(params: HTTPRequestParams, onResponse: (r: http.Inco
   if (params.rejectUnauthorized !== undefined)
     options.rejectUnauthorized = params.rejectUnauthorized;
 
-  const proxyURL = getProxyForUrl(params.url);
+  const proxyURL = getProxyForUrl(url);
   if (proxyURL) {
     const parsedProxyURL = normalizeProxyURL(proxyURL);
     if (params.url.startsWith('http:')) {
diff --git a/packages/playwright-core/src/utilsBundle.ts b/packages/playwright-core/src/utilsBundle.ts
index d5e8a2d940673..411c4b386b151 100644
--- a/packages/playwright-core/src/utilsBundle.ts
+++ b/packages/playwright-core/src/utilsBundle.ts
@@ -18,7 +18,7 @@ export const colors: typeof import('../bundles/utils/node_modules/colors/safe')
 export const debug: typeof import('../bundles/utils/node_modules/@types/debug') = require('./utilsBundleImpl').debug;
 export const diff: typeof import('../bundles/utils/node_modules/@types/diff') = require('./utilsBundleImpl').diff;
 export const dotenv: typeof import('../bundles/utils/node_modules/dotenv') = require('./utilsBundleImpl').dotenv;
-export const getProxyForUrl: typeof import('../bundles/utils/node_modules/@types/proxy-from-env').getProxyForUrl = require('./utilsBundleImpl').getProxyForUrl;
+const getProxyForUrlFromEnv: typeof import('../bundles/utils/node_modules/@types/proxy-from-env').getProxyForUrl = require('./utilsBundleImpl').getProxyForUrl;
 export const HttpsProxyAgent: typeof import('../bundles/utils/node_modules/https-proxy-agent').HttpsProxyAgent = require('./utilsBundleImpl').HttpsProxyAgent;
 export const jpegjs: typeof import('../bundles/utils/node_modules/jpeg-js') = require('./utilsBundleImpl').jpegjs;
 export const lockfile: typeof import('../bundles/utils/node_modules/@types/proper-lockfile') = require('./utilsBundleImpl').lockfile;
@@ -39,6 +39,18 @@ export type { Range as YAMLRange, Scalar as YAMLScalar, YAMLError, YAMLMap, YAML
 export type { Command } from '../bundles/utils/node_modules/commander';
 export type { EventEmitter as WebSocketEventEmitter, RawData as WebSocketRawData, WebSocket, WebSocketServer } from '../bundles/utils/node_modules/@types/ws';
 
+// Wraps proxy-from-env's getProxyForUrl to accept a modern URL instance,
+// avoiding the deprecated url.parse() call inside the library.
+// It only reads a couple of fields.
+export function getProxyForUrl(url: URL): string {
+  return getProxyForUrlFromEnv({
+    protocol: url.protocol,
+    // WHATWG URL strips default ports from hostname, which node:url doesn't, but this doesnt matter for proxy-from-env.
+    host: url.host,
+    port: url.port,
+  } as import('node:url').Url);
+}
+
 export function ms(ms: number): string {
   if (!isFinite(ms))
     return '-';