Install Marlin File Browser in Ubuntu 12.10/12.04/11.10/Linux Mint

Install Marlin File Browser in Ubuntu 12.10 Quantal/Ubuntu 12.04 Precise/Ubuntu 11.10 Oneiric/Linux Mint 13/12

Marlin is a lightweight file browser built from the ground-up to be responsive, simply designed and easy to use. It will be the default file browser in the next release of the elementary project’s OS.
Marlin is based on gtk3 and uses Gnome 3 technologies extensively and is built in C and uses vala for interface. Some key features of XFCE file-browser Thunar too are included to give it a certain slickness despite it being a File browser.

Marlin Features:

• Tabbed browsing
• Multiple-views
• Single-click to open (default)
• Configurable toolbars and interface
• Plugin framework
• networking support (SSH, FTP, Windows share, HTTP and HTTPS)
• single click/double click to open file
• And Many More

To install Marlin File Browser in Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the terminal:

Terminal Commands:
sudo add-apt-repository ppa:marlin-devs/marlin-daily
sudo apt-get update
sudo apt-get install marlin

Also Install UbuntuOne and DropBox Extensions for Marlin:

Terminal Command:
sudo apt-get install marlin-plugin-*

That's it

Source: launchpad