If you have some often-visited websites,you might want to add Launchers on desktop that link to the sites instead of open them from the web browser.
There’s a little program called Prism that creates launchers on desktop link to special websites.It will be opened in a independent window rather than the web browser.

Install and Use Prism:

Just run this command in terminal (Applications->Accessories->Terminal) to install Prism:

sudo apt-get install prism

Then,Prism can be launched from Applications->Internet menu.

In its main window, input URL (the address you want this launcher links to ) and Name.Check “Desktop” under “Create Shortcuts”,under “Icon” choose your favourate icon for the launcher.Finally,click OK.

Right-click on the launcher and select Properties,in Permissions tab check “Allow executing file as program”