Frequently Asked Questions


What are the advantages/disadvantages of using Firefly?


  • Firefly can be accessed anywhere with a web browser and an internet connection. This makes it a potentially more convenient and portable tool than Kurzweil.
  • The reading voices in Firefly are, as a whole, superior to those in the Mac version of Kurzweil.
  • Firefly is comparable to Kurzweil (both Windows and Mac versions) in its ability to translate text. Unlike Mac Kurzweil, Firefly can also intelligibly read text in Spanish.


  • Firefly is not a text editor, and it has limited annotation capabilities (Firefly only supports text highlighting).
  • Firefly can only read .kes files. If you wish to upload a file of a different format, you must first create a .kes file using Kurzweil.
  • As an online tool, Firefly is slightly slower than Kurzweil – it takes Firefly a moment to load text and move between pages.

Other FAQs

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