Prism

Thanks to the popularity of Fluid, the concept of Single Site Browsers (SSB) has gained a lot of popularity. The idea is that a lot of people were using one or more web applications all day, every day.
Rather than have those apps as just another tab amongst all the other tabs in your browser, SSB’s allow you to run your apps in their own window. This also helps when your browser crashes because you have more than 20 tabs loaded — your web app is protected in its own environment.
And Prism is Mozilla’s entry in this space.

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