Panels

When you start Mozilla, you see Navigator, your browser. A "welcome" page entitled "Getting Involved with Mozilla" appears automatically in the browser window when you first launch Mozilla. This page welcomes you to the Mozilla community and tells you more about Mozilla. It has information on how you can report problems you find, and how you can participate in improving Mozilla. Suggested examples of this include contributing documentation, finding bugs, fixing bugs, and contributing new code.

There are two ways to view more than one webpage simultaneously. The method most familiar to many people is opening a new window. To do this, open the File menu and choose New Navigator Window. At first the new window displays a copy of your home page, but you can use it to view a different page. The second way to accomplish this is to use a new feature available in Mozilla called "Tabbed Browsing." You are now able to open sub-windows or "tabs" within a single window. To open a new tab, press Control T or open the File menu and choose New | Navigator Tab. You will now see a second "tab" next to the original window you had open. Type in an address, such as www.mozilla.org in the location bar above the tab, to have the website corresponding with that website open in the open tab. The number of tabs you can open is only limited by the system resources available to you.

From Mozilla Help .

Much like a credit card or a driver's license, a certificate is a form of identification you can use to identify yourself over the Internet and other networks. Like other commonly used personal IDs, a certificate is typically issued by an organization with recognized authority to issue such identification. An organization that issues certificates is called a certificate authority (CA).

You can obtain certificates that identify you from public CAs, from system administrators or special CAs within your organization, or from web sites offering specialized services that require a means of identification more reliable that your name and password.

Just as the requirements for a driver's license vary depending on the type of vehicle you want to drive, the requirements for obtaining a certificate vary depending on what you want to use it for. In some cases getting a certificate may be as easy as going to a web site, entering some personal information, and automatically downloading the certificate into your browser. In other cases you may have to go through more complicated procedures.

From Mozilla Help .