OPML Support
OPML Support adds OPML import/export functionality to the Firefox Bookmarks manager. OPML is a file type that is widely used to distribute lists of RSS/newsfeeds.When exporting, you can choose to export your livemarks, bookmarks, or both. When importing a file, you can choose to import only the livemarks, only the bookmarks, or all of the links listed in the file. You can also choose whether to import/export links in their folder hierarchy.Version 1.2 adds support for importing and exporting bookmarks, as well as options for importing/exporting livemarks as normal bookmarks and importing/exporting links with or without their folder hierarchy.
Supported
versions: Firefox 1.0 - 2.0.0.* ALL
Notes / Comments: Contact me at cfinke@gmail.com if you have problems with this extension; I have no way of responding to problems left in the comments.
Categories: Bookmarks

OPML import option:

OPML export option:

Confirmation of imported Live Bookmarks:
