Runtime
Operating System
Support Level
Kernel
Notes
Flash 7
Windows, Mac
A
swf
version 7r68 or later www.adobe.com—index.cfm
Flash 8
Windows, Mac
A
swf
incl. Flash9 emulation mode
Internet Explorer 6
Windows
A
dhtml
Internet Explorer 7
Windows
A
dhtml
Firefox 1.5
Windows, Mac, Linux
A
dhtml
Firefox 2.0
Windows, Mac, Linux
A
dhtml
Safari 2.0
Mac
A
dhtml
Flash 7
Linux
B
swf
Flash Lite 2 www.adobe.com—flashlite
Embedded/Mobile
B
swf
WebKit nightly webkit.org
Mac
B
dhtml
Mozilla nightly www.mozilla.org—developer
Windows, Mac, Linux
B
dhtml
S60WebKit
Symbian Series 60
B
dhtml
Opera 8
Windows, Mac
B
dhtml
Opera 9
Windows, Mac
B
dhtml
Flash 5
Windows, Mac
C
dhtml
no longer supported
Flash 6
Windows, Mac
C
dhtml
no longer supported
Flash 9 (native)
Windows, Mac
C
support planned in 2007
Flash Lite www.adobe.com—flashlite
Embedded/Mobile
C
based on Flash 5; not supported
Internet Explorer 5
Windows, Mac
C
too old; not supported

Support Levels

A -- Fully supported

B -- Not supported, but may work; bugs tracked and contributions accepted

C -- Incompatible (doesn't run for a significant technical reason)