If you are switching browsers, Firefox can import all of your settings such as, bookmarks, passwords and other data from Netscape, Opera and Internet Explorer. Here's how:

When you are first installing Firefox, an Import option will be given at some point during the install process. From there, select the browser that you would like to import from. Next, select which settings you would like to import and Firefox will do the rest. If you already have Firefox and didn't import your old browser settings but you would like to do that now--no problem! Here's how:
Open Firefox
Go up to File
Select Import
The Import wizard will take you through the Import process to capture all of the settings that you require.