To create an isolated browser session in Puppeteer, call browser.createBrowserContext(), then create pages with context.newPage(). Cookies and local storage are separate from other contexts, and closing the context closes its pages. This is storage isolation within a browser instance—not a promise of anonymity or a separate browser process.
What a Puppeteer BrowserContext isolates
A BrowserContext groups pages and browser-level session state. Puppeteer’s guide says cookies and local storage are not shared between contexts; the API reference also specifies that cookies and cache are not shared. In Chrome, non-default contexts are incognito contexts. See the browser management guide and createBrowserContext() API reference.
Isolation applies between contexts, not between pages in the same context. Pages in one context share its session state, and a popup opened by a page belongs to that page’s context. The documentation does not claim that contexts provide anonymity, prevent fingerprinting, or run in separate browser processes.
Create and use an isolated session
This example launches a browser, creates a non-default context, opens a page in that context, and cleans up both resources even if navigation or automation fails:
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
import puppeteer from 'puppeteer';
const browser = await puppeteer.launch();
const context = await browser.createBrowserContext();
try {
const page = await context.newPage();
await page.goto('https://example.com');
// Run this session's automation in the context.
} finally {
await context.close();
await browser.close();
}The important detail is creating the page from context. Calling browser.newPage() instead creates a page in the default context, so it would not use the newly created isolated session. The documented workflow and methods are covered in the browser management guide and API reference.
Choose the right context for the task
| Need | Use | Result |
|---|---|---|
| Share session state among related pages or popups | Pages in the same context | They share that context’s session state; a page’s popup remains in its context. |
| Keep cookies and storage separate from another session | Create another context with browser.createBrowserContext() |
The contexts have separate cookies and local storage; the API reference also states that cache is not shared. |
| Return to the default browser context | browser.newPage() |
The page is created in the default context, not in a separately created context. |
| Clean up a group of pages together | Close the non-default context with context.close() |
Its associated pages close with it. The default context cannot be closed. |
Puppeteer documents the default context and context listing through browser.browserContexts(). A newly launched browser has one default context; use a separately created context when you need context-level teardown.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Close contexts and clean up reliably
Call context.close() when the isolated session is finished. It closes the pages associated with that context. You cannot close the default browser context, so create a non-default context for work that needs this cleanup boundary. Use try/finally so cleanup runs after a navigation or automation error; then close the browser if your program owns it. The BrowserContext.close() reference documents the close behavior.
Troubleshoot common context mistakes
- State appears to be shared. Check whether both pages were created in the same context. Create a distinct context for each session that needs separate storage.
- The new page is not isolated. If it was created with
browser.newPage(), it belongs to the default context. Usecontext.newPage()instead. - Closing the default context fails. The default context cannot be closed. Create a non-default context and close that context when its work is done.
- Other pages remain open after cleanup. Confirm that those pages belong to the context you closed. Closing one context closes its associated pages, not pages in other contexts.
- You expect anonymity or process-level separation. The cited Puppeteer documentation establishes storage separation and calls Chrome’s non-default contexts incognito; it does not promise anonymity, fingerprinting protection, or a separate browser process.
Version notes
The official search results for the main context method and class reference reported Puppeteer API documentation version 25.12.0; the close-method page reported version 25.9.0. Documentation versions can differ, so check the live method reference when matching code to a specific Puppeteer release: createBrowserContext() and BrowserContext.close().
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Or skip the browser setup
If your goal is a website screenshot rather than browser-session automation, ScreenshotNeo can return a screenshot or PDF from one GET request. Its capture flow accepts cookie and consent banners and removes more than 60 known consent platforms, newsletter popups, and chat widgets before the shot; those steps can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits are not billed, with page verdict and billing information in response headers. It also offers an MCP server for AI agents, with take_screenshot, get_page_info, and capture_pdf tools.
Example cURL request, saving a WebP screenshot:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com -o shot.webpSee the ScreenshotNeo API documentation for request details. The free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000. Sign up for ScreenshotNeo’s free plan.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
