Hardware Reference
In-Depth Information
page's graphics, from the stored cache rather than re-retrieving them from the Web. This
makes your Internet connection seem faster.
Some people consider this data caching to be a privacy concern, because others can
snoop on the hard drive to view cached copies of some of the web content previously
viewed. Because of this, browsers have a feature that allows you to clear the cache and to
elect not to cache pages in the future.
A browser's history also provides a record of the pages recently viewed, but for a
different reason. The history is useful if you need to fi nd and return to a site when you've
forgotten its web address, for example. The history doesn't retain copies of any of the
content—it only remembers the addresses of the pages visited. The history can also be
cleared, and you can elect to prevent it from storing information in the future.
EXERCISE 3.15
Adjusting Security and Privacy Settings in Firefox
1.
Download and install Firefox from www.mozilla.org if it isn't already installed on your
computer.
2.
In Firefox, choose Tools Options. The Options dialog box opens.
3.
Click the Security icon at the top.
4.
Make sure the Block Reported Web Forgeries check box is selected. (That's the phishing
fi lter.)
5.
Click the Content icon at the top.
6.
Make sure the Enable JavaScript and Block Pop-Up Windows check boxes are selected.
7.
Click the Privacy icon at the top.
8.
Clear the Accept Third-Party Cookies check box.
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