Recently there has been talk about websites not supporting Firefox. Also there are certain hurdles in making applications (mostly intranet apps) work on Linux when a certain organisation tries to migrate to linux.
The following document is a good starting point for such initiatives. http://developer.mozilla.org/en/docs/Migrate_apps_from_Internet_Explorer_to_Mozilla -- Vinayak -- http://mm.glug-bom.org/mailman/listinfo/linuxers
