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How can I import my IE favorites into Mozilla's bookmarks?
Doing so is a two-step-process.
First, start IE and select "File" -> "Import and Export". Chose "Export favorites" and save your IE bookmarks. It's best to select a place where you can easily find them. Then, open Mozilla, and select "Bookmarks" -> "Manage Bookmarks". In the window the opens up, select "Tools" -> "Import" and then select the file with your IE bookmarks that you previously saved. You should now have your IE bookmarks in Mozilla.