I assume that you are referring to one of the smart bookmarks folders.

• "Most Visited" and "Recently Bookmarked" and "Recent Tags" are examples of so called Smart Bookmarks folders and are not real existing folders.
• Smart folders show a list created by a query of the places.sqlite database that stores bookmarks and history in Firefox.
• Smart folder lists show a maximum of 10 entries by default.
• Bookmarks and history items that show up in a smart folder list are stored elsewhere in another folder and any changes made are applied to the real bookmark or history item.
• Actions like copy & paste or delete that you perform on bookmarks in such a list are done on the original bookmark.

Note that you can open the history in the sidebar and sort the view "By Last Visited" to see a longer list.

Or maybe you meant:

The History menu? I see 15 recent entries on the bottom of this menu...

The triangle in the address bar? I see 12 frequently used sites in the drop-down...

jscher2000 said

Or maybe you meant: The History menu? I see 15 recent entries on the bottom of this menu... The triangle in the address bar? I see 12 frequently used sites in the drop-down...

hi thank you for your answers

what I mean is the http://en.wikipedia.org/wiki/Address_bar

where you type in URLS. In the past the browser saved all URLs there and I was able to see them all and scroll up and down from A -Z. Today it are just 12, from time to time I click on the little triangle and want to go on a website, but it is not among these 12. For me there is no reason not to show me all visited websites. Then I have to type again.

You could increase the value of browser.urlbar.maxRichResults on the about:config page.

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

• http://kb.mozillazine.org/about:config