Fedora 15 : Installing Gnome Shell Extensions

# yum search gnome-shell-extension
Loaded plugins: langpacks, presto, refresh-packagekit
==== N/S Matched: gnome-shell-extension =================
gnome-shell-extension-cpu-temperature.noarch : A gnome-shell extension to show the current temperature of CPU
gnome-shell-extension-icon-manager.noarch : A gnome-shell extension to manage icons in top bar
gnome-shell-extension-mediaplayers.noarch : A gnome-shell extension to control mediaplayers
gnome-shell-extension-noim.noarch : A gnome-shell extension for removing the name and the IM status
gnome-shell-extension-noripple.noarch : A gnome-shell extension to disable hot corner ripple effects
gnome-shell-extension-pidgin.x86_64 : The components necessary to integrate Pidgin with GNOME Shell
gnome-shell-extension-pomodoro.noarch : A gnome-shell extension for the pomodoro technique
gnome-shell-extension-presentation-mode.noarch : A gnome-shell extension to control the screen saver
gnome-shell-extension-remove-accessibility-icon.noarch : A gnome-shell
     ...: extensions for removing the accessibility icon
gnome-shell-extension-remove-bluetooth-icon.noarch : A gnome-shell extension for removing the bluetooth icon
gnome-shell-extension-remove-volume-icon.noarch : A gnome-shell extension for removing the volume icon
gnome-shell-extension-theme-selector.noarch : Gnome shell user theme selector
gnome-shell-extension-workspacesmenu.noarch : A gnome-shell extension for fast switching work spaces
gnome-shell-extensions-alternate-tab.noarch : Classic Alt+Tab behavior. Window based instead of app based
gnome-shell-extensions-alternative-status-menu.noarch : For those who want a power off item visible at all the time
gnome-shell-extensions-auto-move-windows.noarch : Assign specific workspaces to applications
gnome-shell-extensions-common.noarch : Files common to GNOME Shell Extensions
gnome-shell-extensions-dock.noarch : Shows a dock-style task switcher permanently
gnome-shell-extensions-drive-menu.noarch : Disk device manager in the system status area
gnome-shell-extensions-native-window-placement.noarch : Arrange windows in overview in a more native way
gnome-shell-extensions-places-menu.noarch : Places menu indicator in the system status area
gnome-shell-extensions-user-theme.noarch : Lets the user select a custom theme for the shell
gnome-shell-extensions-windowsNavigator.noarch : Keyboard selection of windows and work-spaces in overlay mode
ibus-gnome3.x86_64 : IBus gnome-shell-extension for GNOME3

Display extension info:

# yum info [extension-name]

Install required extension:

# yum install [extension-name]

Example:
# yum info gnome-shell-extensions-alternative-status-menu.noarch
# yum install gnome-shell-extensions-alternative-status-menu.noarch