Safari
Open Safari if it is not already open.
Choose Safari > and verify that there is NOT a checkmark next to Block Pop-Up Windows.
Important: Changing your cookie preferences or removing cookies in Safari may change or remove them in other apps, including Dashboard.
Open Safari if it is not already open.
Choose Safari > Preferences, and then click Privacy.
In the “Block cookies” section, Choose the option "never".
To see an explanation of the options, click the Help button (looks like a question mark).
Cleaning out Temporary Internet Files
If you want to manually clear your browsing history, click on the "Clear History…" button in History search or choose History > Clear History…
If you want Safari to automatically clear the history after a certain period of time, not at all, from the Safari menu choose Preferences… > General . From the "Remove history items:" pop-up menu, choose your preferred setting (After one day, After one week, After two weeks, After one month, After one year, or Manually). The default setting is "After one month".