即使根据gutsy的快速设置指南安装了Flash插件，但Myeclipse6帮助并不能识别出来，从而不能播放嵌套在帮助文档中的Flash视频，必须安装Adobe的FlashPlayer！
1, 在这里去下载：
http://www.adobe.com/products/flashplayer/
2, 下载后，在Shell下:
tar xzf install_flash_player_9_linux.tar.gz
sudo ./flashplayer-installer
3, 下面是安装时的提示:
Copyright(C) 2002-2006 Adobe Macromedia Software LLC. All rights reserved.
Adobe Flash Player 9 for Linux
Adobe Flash Player 9 will be installed on this machine.
You are running the Adobe Flash Player installer as the "root" user.
Adobe Flash Player 9 will be installed system-wide.
Support is available at http://www.adobe.com/support/flashplayer/
To install Adobe Flash Player 9 now, press ENTER.
To cancel the installation at any time, press Control-C.
NOTE: Please exit any browsers you may have running.
Press ENTER to continue...
//输入firefox的安装地址: /usr/lib/firefox
Please enter the installation path of the Mozilla, SeaMonkey,
or Firefox browser (i.e., /usr/lib/mozilla): /usr/lib/firefox
dir= /usr/lib/firefox
----------- Install Action Summary -----------
Adobe Flash Player 9 will be installed in the following directory:
Browser installation directory = /usr/lib/firefox
Proceed with the installation? (y/n/q): y
Installation complete.
Perform another installation? (y/n): n
Please log out of this session and log in for the changes to take effect.
The Adobe Flash Player installation is complete.
OK,重启Myeclipse后就可以观看帮助里的Flash了.
