Supported Browsers for Outlook Web App and Exchange Online

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You can use Outlook Web App and the Exchange Control Panel with almost any Web browser. This includes Internet Explorer, Mozilla Firefox, Apple Safari, Chrome, and most other Web browsers on computers running UNIX, Apple Macintosh, or Windows.

Outlook Web App and the Exchange Control Panel

To use the complete set of features available in Outlook Web App and the Exchange Control Panel, you can use the following browsers on a computer running Windows XP, Windows 2003, Windows Vista, or Windows 7:

• Internet Explorer 7 and later versions.
• Firefox 3.0.1 and later versions.
• Chrome 3.0.195.27 and later versions.

On a computer running Mac OS X 10.5 and later versions, you can use:

• Safari 3.1 and later versions.
• Firefox 3.0.1 and later versions.

On a computer running Linux, you can use:

• Firefox 3.0.1 and later versions.

If you use a Web browser that doesn't support the full feature set, Outlook Web App will open in the light version.

Light Version of Outlook Web App

The light version of Outlook Web App is optimized for accessibility, such as for users who are blind or have low vision. The light version provides fewer features and is faster for some operations. You may want to use the light version if you're on a slow connection or using a computer with unusually strict browser security settings. The light version can be used with almost any browser and has the same features across all browsers.

For information about how to use the light version, see Accessibility for Blind and Low Vision Users.

What else do I need to know?

• If you need to use S/MIME for digital signatures or message encryption, you must use the 32-bit version of Internet Explorer 7, Internet Explorer 8, or Internet Explorer 9. The default version of each is 32-bit.
• Check your Web browser's options to verify the following settings to have the best experience using Outlook Web App:
  
  • Enable session cookies. Session cookies are deleted at the end of the browser session.
  • Enable JavaScript.
  • Check pop-up blocker settings. Pop-up blocker settings in your Web browser or in an add-on pop-up blocker may prevent Outlook Web App from working as expected.