这不仅仅是一款无边框的浏览器。Prism不仅仅是将应用软件从浏览器的界面中剥离出来，还将应用软件从处理过程中剥离出来。如果用浏览器运行Web应用软件，如果浏览器崩溃了，应用软件也会随之崩溃；如果使用Prism，浏览器的崩溃不会导致应用软件崩溃。马克表示，通过将应用软件从浏览器中剥离出来，Prism也保护了应用软件。Prism是一款独立的应用软件，但Mozilla还在开发一款提供一些Prism功能的Firefox插件。
Prism让人们可以把喜欢的Web应用变成桌面程序，从而集成在操作系统中。举个例子，人们可以从Mac OS、Linux或Windows的应用程序菜单访问基于Web的程序Gmail或是Facebook，或者他们能够在桌面为Facebook创建图标，以自己的窗口方式运行。Mozilla现在已经有了Prism的原型，可以运行在Windows和早期版本的Mac，Linux中。未来版本将可以离线访问信息，可以察看三维图片。其目标就是让开发人员使用已经有的Web开发技术结合Prism的特点写应用程序。
Prism is a simple XULRunner based browser that hosts web applications without the normal web browser user interface. Prism is based on a concept called Site Specific Browsers (SSB). An SSB is an application with an embedded browser designed to work exclusively with a single web application. It doesn’t have the menus, toolbars and accoutrements of a normal web browser. Some people have called it a "distraction free browser" because none of the typical browser chrome is used. An SSB also has a tighter integration with the OS and desktop than a typical web application running through a web browser.
官网：http://wiki.mozilla.org/Prism
官方下载：
Prism is available as an extension for Firefox 3 or as a standalone application.
- Extension (all platforms): Install from addons.mozilla.org
- Install (Windows): prism-0.9.en-US.win32.exe (6.6 MB)
- Install (Windows (ZIP)): prism-0.9.en-US.win32.zip (8.5 MB)
- Install (Mac): prism-0.9.en-US.mac.dmg (11 MB)
- Install (Linux): prism-0.9.en-US.linux-i686.tar.bz2 (7.9 MB)
- Install (DEB Package): prism_0.9.deb (8.4 MB)
Old version [edit]
- Install (Windows): prism-0.8-win32.exe (6 MB)
- Install (Mac): prism-0.8-mac.dmg (17MB)
- Install (Linux): prism-0.8-linux.tar.bz2 (8MB)
NOTE: "bash: ./prism: No such file or directory" error on 64-bitLinux (Ubuntu Gutsy Gibbon) occurs if you do not have the "ia32-libs"package installed. Installing the package with "sudo aptitude installia32-libs" resolves the issue.