This should be easy for you. By default, Mozilla Firefox is installed after fresh installation of Ubuntu Feisty. And the fact is, Firefox is more secure and faster web browser you can get to date.

1. Mozilla Firefox (installed by default)
2. Opera - Fast and safe Web browser (but a bit difficult to customize and set up)
To install :

• Go to the main Opera download page HERE.
• Choose Feisty Fawn
• Click Download Opera. Download will start automatically. Save the file and run it after download is completed.

3. Epiphany - The web browser for GNOME. You can read about it HERE.
To install :

• Open Terminal. Type

sudo apt-get install epiphany-browser

• Epiphany will start downloading and should be on your menu (Application>Internet>Epiphany) shortly.
  

Labels: Epiphany, Firefox, Mozilla, Operating System, Ubuntu Linux, Web Browser, Web Browser Ubuntu