Information
This setting allows the configuration of how Firefox handles scripts from raising or lowering browser windows.
Rationale:
An arbitrary web site raising or lowering the browser window can cause improper input or can help disguise an attack taking place in a lowered window.
Impact:
Scripts will not be able to raise or lower browser windows.
Solution
To establish the recommended configuration, set dom.disable_window_flip to true:
Type about:config in the address bar
Type dom.disable_window_flip in the filter
Ensure the setting is set as prescribed.
OR
Open the mozilla.cfg file in the installation directory with a text editor
Add the following lines to mozilla.cfg:
lockPref('dom.disable_window_flip', true);
Default Value:
True (Disabled).