4 of 7Image
This screen is taken from Safari on the Mac but it also applies to the Windows version.
On Safari for Windows, choose Edit and ensure that Block Pop-up Windows is checked.
The shortcut for this is Ctl+Shift+K.
This option will prevent sites from opening another window through the use of scripting, or active content.
You should be aware that while pop-up windows are often associated with advertisements, some sites may attempt to display content relevant to your usage of the site in a new window.
Therefore, setting this option may disable the functionality of some sites.
Source: CERT/CC (Computer Emergency Response Team Coordination Center).
On the Mac OS (screenshot), choose Safari > Preferences. On Safari for Windows, choose Edit > Preferences
In the General tab, you can set up many options such as Save downloaded files to: and Open "safe" files after downloading.
CERT/CC recommends that you save downloaded files to a temporary folder that you create for downloading files.
For security reasons, be sure to uncheck the Open "safe" files after downloading option.
Move next to the AutoFill tab to select what types of forms your browser will fill in automatically.
In general, CERT/CC recommends against using AutoFill features because if someone can gain access to your computer, or to the data files, then the AutoFill feature may permit them even easier access to other sites that they would not otherwise have the ability to access.
However, if used with appropriate protective measures, it may be acceptable to enable AutoFill.
On the Mac, use filesystem encryption software such as OS X FileVault to provide additional security for files that reside your home directory.