Problem
In Firefox 2.0 and above, some links (when clicked) will launch the target URL in a new tab when the author intended those links to appear in an entirely new window instead.  (These links are normally written with a "target=_blank" attribute.)  Clicking the same link in other browsers has a different effect; the link launches a new window as expected.

Cause 
This behavior is occuring because of the default security settings in the Firefox browser.

Solution 
Using an advanced editing console, you may adjust the security settings in Firefox if desired.  Please note that we recommend this technique only for advanced users and we urge you to practice extreme caution, since some settings in the browser configuration can lead to serious problems if treated incorrectly.

To change the settings for Firefox's handling of new window links:

1. Open the Firefox browser.
2. In the Address bar, type "about:config" (Note that there is no "http://" preceding this, and there is no space between the words).
3. You will see a list of preferences and values for various items in Firefox.  Scroll down to "browser.link.open_newwindow.restriction".  Double-click this item.
4. Enter a value of "1" in the field and click OK.

The browser will now open appropriate links in a new window instead of a new tab.

For more information on browser settings in Firefox, see http://www.mozilla.org/support/firefox/tips.