How do I add or delete a quick link from Firefox's home page.

see [[Firefox's default home page has quick links to common features|Firefox's default home page has quick links to common features]]

You can change the order of the boxes on the about:newtab page and drag an item to a different slot to pin it to that position or you can remove a website by clicking the close X to block that URL.<br /> You can drag a bookmark or history item and drop them in a slot on the about:newtab page to pin them and have your own favorites sites showing. Changes made manually on the about:newtab page are stored in the browser.newtabpage.pinned (default = [null]) and browser.newtabpage.blocked prefs that you can check/modify on the about:config page (Bug 791447). *http://kb.mozillazine.org/about:config 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