SnapBack for Safari For Mac Publisher's description
from Philippe Martin
SnapBack brings back a feature that Safari once had
SnapBack brings back a feature that Safari once had: it lets you jump back to the first page in the history of the current window or tab, or to the page you marked from the contextual menu.
SnapBack remembers the first page you loaded and the last page you marked in every tab or window. As long as you haven't marked a page, snapping back will take you back to the first page you explicitely loaded (that is if you have Top Sites displayed by default in new windows and tabs, SnapBack won't take you back there, but to the first page you actually loaded).
Once you marked a page (from the contextual menu invoked on the current webpage), SnapBack will always take you back to that page, with one exception: snapping back again from the page you marked will take you back to the first page you loaded. And then, of course, snapping back again would take you back to the page you marked. So that's two points you can snap back to (and cycle between) in every tab.
Note that the toolbar button's icon, its tooltip, and the text of the Snap Back command in the contextual menu will change to show when snapping back would take you to the marked page.
If you marked a page and want to mark another, you don't have to unmark the existing one first. Just mark the new page and the previous mark will be forgotten. If you just want to unmark the page you marked, snap back to it and unmark it from the contextual menu (again, invoked on the current webpage, not on the toolbar).
Also note that SnapBack really moves you in the tab's history. So after you snapped back, you can use the Back (if enabled) and Forward buttons to retrace your steps through the history. It also means that if you mark a page, go back in the history to a point before that page, and start a new branch in the history, the page you marked will no longer be in the history and your mark will be deleted.
System Requirements:В· Safari 2 to 4
Program Release Status: Minor Update
Program Install Support: Install and Uninstall