You can import your bookmarks from Firefox, using the following steps:

Steps

1. Open a browser and point to Bookmarks / Manage Bookmarks …
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2. In Manage Bookmarks, point to File / Export …
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3. Select the path of where you want to save the file containing your bookmarks.
4. Put the file in an easy place to reach since it is temporary.

You now have your file containing the bookmarks from your browser, ready to be imported here into your account!

In the import page from your account, browse to your file and then click the “Import!” button.