Can you email your favorites folder?

YES! Your favorites in internet Explorer are nothing more than files in a folder. Firefox holds all of your favorites in one file. Specifics are as follows :

Internet Explorer :

Take the folder C:\DOCUMENTS AND SETTINGS\[USER NAME]\FAVORITES and zip it to a zip file using Windows Zip, or WinRAR. email that folder. It can be copied directly into a new favorites folder on another PC or user. Only duplicates will be overwritten.

Firefox :

Slightly more complicated. Navigate to the folder C:\DOCUMENTS AND SETTINGS\[USER NAME]\APPLICATION DATA\MOZILLA\FIREFOX\PROFILES\q9fkzms1.default. The file named BOOKMARKS stores all of your favorites in that single file. Opening it will show you. Email that file. Copying this file to the new folder WILL overwrite the existing file. I do not know of a way to merge these files yet, but I am sure there is.

There is! all you need to do to add or back up your firefox bookmarks is go to the bookmarks tab up at the top of the screen, select organize bookmarks, and there you can import/export your firefox bookmarks as a firefox extension or as an HTML file