This is a pure JavaScript and HTML-5 browser based application. You need to enable javascript functionality and then reload. Note also that without HTML-5 JavaScript FileReader support, you won't be able to load any dictionaries or CIF files :-/ (see: here)
  1. (Help)
  2. Choose a CIF Dictionary in .js or .dic format.
    (/opt/google/chrome/chrome --allow-file-access-from-files)

  3. Load your CIF file.

  4. Optionally inital CIF content.

  5. Optionally unknown "?" items in CIF.

  6. Edit and then your CIF as text for local saving,
    or directly You must have Flash 10 installed to save this file locally. (and ensure JsCifBrowser is added to your Flash trusted website settings )