Your web site administrator has defined a default layout for your pages title (eg
) but you can define a specific title for each page. To do this on your default language page you must :
Click on “Web > page” module
Select a page 
Edit the page header
Edit “Browser title” field
Save. That's it !! Now see this new page title in frontend 
You can do the same thing for your alternative languages pages by editing the correspondent header