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Chrome has no built-in Internet Explorer compatibility mode and cannot switch to Internet Explorer’s rendering engine. For an old site, use the browser the site supports; in a managed Windows organization, administrators can route selected URLs from Chrome to Microsoft Edge in IE mode using Chrome Enterprise Legacy Browser Support (LBS). If you only need to test browser identification, you can change Chrome’s user-agent string—but that does not make Chrome render like IE.

First decide what “Chrome compatibility mode” means

The phrase can refer to two different jobs: making a legacy website work, or checking how a site responds to a claimed browser identity. The right solution depends on which one you need.

Need Use Limitation
Open an old site on a personal computer Use the browser supported by the site, or ask its owner or administrator which browser and configuration are required. Chrome’s enterprise routing is managed by an organization, not a consumer IE mode.
Support legacy internal sites on managed Windows devices Have an administrator configure Chrome Enterprise integrated LBS to route selected URLs to another browser. Requires managed policy and carefully maintained URL or site-list rules.
Run an app that requires IE compatibility Use Microsoft Edge in IE mode with the corresponding LBS configuration and site list. Follow the version requirements in Google’s setup guidance and test the actual application.
Test browser-dependent site behavior Use a user-agent override in a developer testing method or extension. A changed user-agent string does not change Chrome’s rendering engine or guarantee the site will treat Chrome as another browser.

Can you turn on Internet Explorer mode in Chrome?

No. Chrome does not include a general-purpose setting that changes its rendering engine to Internet Explorer’s. Google describes user-agent testing as changing the string a browser sends; websites may identify browsers in other ways too. A user-agent override therefore cannot add IE’s engine or legacy components. Google’s browser testing guidance

If a site needs legacy-browser support, use a browser and configuration supported for that site. For enterprise-managed Windows devices, Google documents Chrome LBS as a way to send selected URLs to another browser, including an Edge IE-mode setup. Google Chrome Enterprise LBS overview

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For organizations: route legacy URLs from Chrome to Edge IE mode

Google’s documented Edge IE-mode integration calls for Edge 87 or later and Chrome 87 or later. Google describes integrated LBS for Chrome 74 and later on Windows. These are requirements stated in the cited setup instructions, not a guarantee that every current app or deployment will work; confirm current requirements in Google’s documentation before rollout. Edge IE-mode LBS setup · Integrated LBS setup for Windows

1. Use integrated LBS, not the retired extension

For Chrome 88 and later, Google says integrated LBS is supported and the former LBS extension is no longer installable. Follow Google’s integrated Windows setup rather than relying on the old extension. Migrate from the LBS extension

2. Configure policy and the URL rules

An administrator enables the LBS policy, supplies the URL rules or enterprise site list, and selects the alternate browser. Google’s instructions cover URL lists and Internet Explorer/Edge enterprise site lists; for an Edge IE-mode deployment, configure Edge IE mode and make the Chrome and Edge settings refer to the intended shared list. Use the exact policy names and configuration steps in Google’s current documentation for your management system. Google’s integrated LBS policy setup · Google’s Edge IE-mode LBS setup

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3. Pilot the rules before broad deployment

Test the intended URLs with a limited group first. Confirm that only the required sites route to the alternate browser and that no unintended greylist rule allows either browser. Validate the applications themselves, especially if they depend on technologies such as ActiveX, Java, or Silverlight; routing is not proof that the application works correctly.

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4. Check the applied policies and routing decision

  • In Chrome, open chrome://policy to check whether the expected policies have been applied.
  • Open chrome://browser-switch/internals to inspect URL routing, site lists, and grey lists.
  • In Edge, check edge://policy and edge://compat for policy and compatibility configuration.
  • If a Windows Group Policy change has not appeared, Google’s setup guidance suggests refreshing policy with gpupdate /force.

For procedural details, use Google’s integrated LBS policy instructions and Edge IE-mode setup instructions.

For developers: test a site’s user-agent response

If your goal is to see what a site does when it receives a different user-agent string, use a user-agent switching extension or a browser developer testing method. This tests behavior tied to browser identification; it does not test another browser’s layout engine, JavaScript implementation, plugins, or legacy components. A site may also identify browsers using signals other than the user-agent string. Google’s guidance on testing sites across platforms

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Troubleshooting

The old website still fails after changing the user agent

The override changes the browser identity string, not Chrome’s rendering engine or compatibility features. Use the site’s supported browser or ask its owner or administrator about the required setup.

A managed URL opens in the wrong browser

Check the applied Chrome policies at chrome://policy, then inspect the URL decision and configured lists at chrome://browser-switch/internals. Review the URL rules and look for an unintended greylist entry. In an Edge IE-mode deployment, confirm Edge’s policies and compatibility settings at edge://policy and edge://compat.

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The site routes to Edge, but the application still does not work

Confirm that Edge is actually configured for IE mode and that Chrome and Edge refer to the intended shared site list. Then test the app itself. Legacy dependencies such as ActiveX, Java, or Silverlight require application-specific validation; a routing rule alone does not establish compatibility. Google’s Edge IE-mode LBS instructions

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A policy change does not appear in Chrome

Check chrome://policy for the policy and its status. If your Windows policy configuration has not refreshed, Google recommends trying gpupdate /force as part of its setup guidance. Google’s integrated LBS policy instructions

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Or skip the browser setup

If you need a screenshot of a web page rather than a compatibility-mode test, ScreenshotNeo returns an image or PDF from one API request. It accepts cookie or consent banners like a visitor and removes more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each cleanup step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits cost nothing, and responses report the page verdict and billing status in headers. Its MCP server provides take_screenshot, get_page_info, and capture_pdf for AI agents and other MCP clients. The free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000.

Example cURL request (replace the target URL and provide your API key):

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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp

See the ScreenshotNeo API documentation for request options. Sign up for 1,000 free screenshots a month, with no card required.

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Frequently Asked Questions

Does Chrome have an Internet Explorer mode?

No. Chrome does not provide a built-in setting that switches it to Internet Explorer’s rendering engine.

Will changing Chrome’s user agent make an old website work?

Not necessarily. It changes the browser identity string, not Chrome’s rendering engine or legacy components.

Can an administrator send Chrome URLs to Edge in IE mode?

Yes. Google documents Chrome Enterprise integrated LBS for managed Windows devices, with an Edge IE-mode configuration and site list for legacy URLs.

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