Hi ahsweetnena,

open about:config page and you can change the browser.newtab.url pref to about:blank to get a new tab with a blank page with the browser.newtabpage.enabled pref set to true.
In order to open about:config page do the following:

• Open Firefox and type about:config in the Location (address) bar
• When you see a warning, click I'll be careful, I promise
• Search for browser.newtab.url and change pref to about:blank
• Check that browser.newtabpage.enabled pref is set to true

Hope that helped! Please report back

Please Update to the latest Firefox 19.0.x version.

• Help > About Firefox

• https://support.mozilla.org/kb/update-firefox-latest-version
• https://support.mozilla.com/kb/Updating+Firefox

The Firefox Firefox 14.0.1 version that you currently run is no longer supported with security updates

Note that the build-in default about:home page doesn't require internet access and shouldn't slow down Firefox.

See also this article about the New Tab page (about:newtab):

• https://support.mozilla.org/kb/new-tab-page-show-hide-and-customize-top-sites