As an active Firefox user, I would like to share Prism with you. Prism is a so-called single site browser and runs each instance in a different, sandboxed process. Therefore it is useful for browsing heavyweight web applications. Tabbed browsers might slow down, when opening a webpage with many and/or large JavaScripts.

YouTube running in Prism
Prism allows you to browse web applications with an minimalistic user interface. Applications can be opened from the dock or a shortcut on the desktop. Just like normal applications!
This how-to installs prism from the binaries provided by Mozilla and not from the Ubuntu repository. The version in the Ubuntu repository is a bit out of date and therefore it misses some essential features.
First, we get the Prism binaries and move the folder to /usr/share/prism/.
mkdir prism cd prism/ wget http://prism.mozilla.com/downloads/1.0b1/prism-1.0b1.en-US.linux-i686.tar.bz2 tar --bzip2 -xf prism-1.0b1.en-US.linux-i686.tar.bz2 sudo mv prism /usr/share/
Then its time to install the Flash Player. You need to install the Flash Player plug-in in each user directory, otherwise the Flash Player wouldn”t work for that user.
wget http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_10_linux.tar.gz tar xfz install_flash_player_10_linux.tar.gz for path in /home/* do if [ -d "$path" ] then mkdir -p $path/.prism/plugins cp install_flash_player_10_linux/libflashplayer.so $path/.prism/plugins/libflashplayer.so fi done
After installing the Flash Player plugin, Prism is ready to use! You can now create shortcuts by running the following command:
/usr/share/prism
Enjoy the power of Prism!