The current Netscape:Bookmarks doesn't support the ID field in the Firefox browser. This is a patch to make it support the ID field. All I did was to copy everything under ICON into ID. I ran "make test" and the files with this patch passed the test, but I have not tested it otherwise.
context diff between Links.pm & Links.pm.~1~ and Bookmarks.pm & Bookmarks.pm.~1~