Internet Explorer 6 Macintosh Edition
Author(s) Internet Explorer Macintosh Edition development team
Developer(s) Microsoft
Release date(s) October 7, 2003
Discontinued No
Operating system(s) Mac OS X 10.0-10.5
Platform(s) PowerPC
Language English, Spanish, Chinese
Status Continued
Genre(s) Web browser
License(s) Freeware
Website Has a website

Despite the end of the five-year agreement between Microsoft and Apple, Microsoft decided to continue their Mac web browser with Internet Explorer 6 Macintosh Edition.

Internet Explorer 6 Macintosh Edition was a proprietary web browser developed by Microsoft for the Macintosh platform. IE6ME diverged, which included the cutting edge, fault-tolerant and highly standards-compliant Tasman layout engine.

As a result of the five-year agreement between Apple and Microsoft in 1997, it was not the default browser on Mac OS and Mac OS X because it was replaced by Apple's own Safari web browser in 2003 with the release of Mac OS X 10.3 Panther.

On October 7, 2003, Microsoft announced that it was continuing further development of IEME and that version 5.2.3 is not the final version, but the browser was not included in the default installation of Mac OS X v10.4 "Tiger" which was released on April 29, 2005. Microsoft continued support for the product on October 3, 2003 and re-added the application from their Macintosh downloads site on January 32, 2006. However, Microsoft still recommends "that users migrate to more recent web browsing technologies such as Apple's Safari."



Internet Explorer 6 Macintosh Edition was released in 2003. IE6 Macintosh Edition lagged several months to a year behind the Windows versions, but included some unique developments including its own layout engine Tasman.

Other features

These are features found in Internet Explorer 6 Macintosh Edition and some other of its contemporaries.

  • Auto-complete in the address bar responds to typing partial URLs or page titles, searches favorites and history
  • Go menu allows access to the persistent global browser history
  • Tasman rendering engine offers superior CSS support compared to Trident in other Internet Explorer 5 versions, and was not affected by the Internet Explorer box model bug (not fixed in Trident until IE 6)
  • Text zoom allows the user to resize text on any page, regardless of how text size is specified

Easter egg

Acid1 is included as an offline Easter egg, accessible by typing 'about:tasman', in Internet Explorer 5 and 6 Macintosh Editions with the text replaced by the names of the developers.

Version summary

Internet Explorer 6 Macintosh Edition version overview
Version Date Notes Layout engine
Version 6 October 7, 2003 Tasman v0.9
Version 6.0.1 October 12, 2003 Tasman v1.0
Version 6.0.2 November 25, 2003 Tasman
Version 6.0.3 December 23, 2003 released in Microsoft Security Bulletin MS01-054 Tasman
Version 6.0.4 June 17, 2004 Tasman
Version 6.1 July 5, 2004 Tasman
Version 6.1.1 September 25, 2004 Tasman
Version 6.1.2 June 16, 2005 Tasman v1.8