In older emacs versions I used to type: C-x C-f RET And it would re-open the file currently visited in the buffer. Now (emacs 23.1.1) it opens Dired of the directory.
In Firefox, if I have multiple windows open with several tabs each, all will be reopened when I restart FF. In IE8. If I restart and click "Reopen last browsing session", IE reopens tabs from only ...