If the Mimetypes Editor in your version is working,
you can define for example the free Microsoft Word Viewer
to open Word documents, without being vulnerable to
macro viruses, as Word Viewer can not execute macros.
If the MimeTypes editor of your version does not work,
edit it in another version, where it does, and copy then
the file mimetypes.rdf from this profile folder to the
other version s profile folder. You can also use a
mimetypes.rdf from a Firefox folder, if a program for word
documents has been defined there. or try to edit your
mimetypes.rdf manually. It concerns the application
<RDF
escription RDF:about="urn:mimetype:externalApplication:application/msword"
Good luck
Fred