Zendesk Chat system requirements

Zendesk Chat is a web-based SaaS (software as a service) application that runs in a web browser.

Zendesk Chat supports the following browsers running in Windows or Mac OS X. Your browser must be a stable release version, not an Alpha/Beta/Nightly/Development build. This applies to all browsers, regardless of operating system.

If you are using Chat inside of Zendesk Support, you should also check the Zendesk Support system requirements doc.

If you are using a version of Chat integrated with the Web Widget (Zendesk Chat Phases 3 & 4, or Legacy Chat + Support), check the Web Widget requirements for more information.

Important: Zendesk Chat is removing support for Internet Explorer 11, effective January 27, 2021. If you want to continue using a Microsoft browser, Microsoft Edge is currently supported for Zendesk Chat.

Use these links to view the requirements for the following elements:

• Agent/Administrator dashboard interface
• Desktop notifications
• Admin Center
• Mobile (agent requirements)
• SDK
• Chat emoji
  • Desktop
  • Mobile
• Browser configuration
• Visitor requirements
  • Desktop
  • Mobile
• Firewall configuration

Agent/Administrator dashboard interface

• Google Chrome v.25 and higher
• Mozilla Firefox v.21 and higher
• Apple Safari v.6 and higher
• Microsoft Edge
• Microsoft Internet Explorer v. 11 and higher with Edge
  Note: If you're using Chat-Support integration with Internet Explorer, you might need to edit your browser settings. For details, see Managing third-party browser cookies for Chat-Support integration.

Desktop notifications

• Google Chrome v.22 and higher
• Mozilla Firefox v.22 and higher
• Apple Safari v.6 and higher
  Note: Safari v. 11 will automatically block sound notifications. See Editing your personal settings in Zendesk Chat for information on permitting sound notifications in Safari.
• Microsoft Edge v.14 and higher

Admin Center

• Google Chrome: latest two versions
• Mozilla Firefox: latest two versions
• Apple Safari: latest two versions
• Microsoft Edge

Mobile (agent requirements)

• Apple iOS 7 and higher
• Google Android 2.3 and higher

SDK

• Apple iOS 6.0 and higher
• Google Android 2.3 (API Level 9) and higher

Chat emoji

Desktop

• Google Chrome v.10 on Windows
• Mozilla Firefox v.7 and higher on Windows,
• Google Chrome v.10.10 and higher on OS X
• Mozilla Firefox v10.7 and higher on OS X
• Apple Safari v.10.7 and higher
• Microsoft Internet Explorer v. 11 and higher with Edge
• Microsoft Edge v.10

Note: Windows version 8.1 and higher is required for emojis in color.

Mobile

• Apple Safari v.5 and higher on iOS.
• Google Chrome v.5 and higher on iOS
• Google Chrome v4.4 and higher on Android

Browser configuration

• JavaScript must be enabled
• Cookies must be enabled
• localStorage must be enabled
• TLS v1.2 or above

Visitor requirements

Desktop

• Google Chrome v.25 and higher
• Mozilla Firefox v.21 and higher
• Apple Safari v.6
• Mozilla Firefox v.21 and higher
• Apple Safari v.6 and higher
• Microsoft Edge
• Microsoft Internet Explorer v. 11 and higher with Edge
  Note: Keep in mind that Internet Explorer 11 is susceptible to memory leaks, which may impact performance.

Mobile

• latest two major versions of Safari on iOS
• latest version of Chrome on iOS
• latest two major versions of Chrome on Android
• latest version of Firefox on Android

Note: The overlay mobile widget is not supported for the Android Browser on 4.3 and below. The widget will fall back to the chat popup mode and open in a new tab. Chrome and Firefox on Android 4.3 and below will work as expected (open in overlay).

Firewall configuration

Zendesk Chat only uses ports 80 and 443, which should be open on all firewalls as they are standard ports. The more important thing to look for is the following:

• Traffic from *.zopim.com is added to the Allowed Domains list on the firewall. (* is a wildcard and means all subdomains on the zopim.com domain).
• Zendesk Chat relies on Amazon for services. If the customer is blocking Amazon IPs, it could negatively impact chat performance.