With Mozilla 1.3, they've changed the format of the .fileloc files for links to files on the local drives. In Mozilla 1.2.1 and earlier, local files were referenced with a format like:
file:///macintosh%20hd/Users/mcrocker/Documents/
Starting with Mozilla 1.3, the format has changed to only use two slashes, like:
file://macintosh%20hd/Users/mcrocker/Documents/
For those of you who don't know, a .fileloc file is created by dragging the tiny icon in the left of the URL text field in the Navigator window to the desktop or any Finder window. Then, to get back to that URL, just drag the .fileloc to the Navigator window. Some of us think that this is much better way to do things than with bookmarks because you can organize web pages using the standard file system rather than some sepparate entity like a bookmarks database. Unfortunately, the file names of .fileloc files is the URL, not the web page name, making these less useful than they would otherwise be.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20030317001735588