http://www.redhat.com/magazine/009j...tures/multilib/
64bit 不能直接動態連結32bit library
相容模式執行32bit程式 必須要用32bit library

再來
http://labs.adobe.com/wiki/index.php/Flash_Player

When will a 64-bit version of Adobe Flash Player for Linux be available?

The Adobe Flash Player team is working on support for 64-bit platforms as part of our ongoing commitment to the cross-platform compatibility of Adobe Flash Player. We have not yet announced timing or release dates.

目前LINUX 64BIT FIREFOX是用NSWARPPER 去包32BIT的FLASH PLAYER

再者 我說的是 "JAVA Browser Plug-in" 沒有64位元
不是 JAVA JRE/JDK沒有64位元

http://java.sun.com/javase/6/webnot...igurations.html

64-bit Install (no Java Plug-in, Java Web Start support)

要到JDK 7才有64位元的JAVA Browser Plug-in

科科