Koji and I figured out what the problem is.  Apparently firefox 17.0 (specifically it's user-agent string) breaks fckeditor, which is the javascript toolbox the elog uses for the wysiwyg text editor.  See https://support.mozilla.org/en-US/questions/942438.

The suspect line was in elog/fckeditor/editor/js/fckeditorcode_gecko.js.  I hacked it up so that it stopped whatever crappy conditional user agent crap it was doing.  It seems to be working now.

Edit by Koji: In order to make this change work, I needed to clear the cache of firefox from Tool/Clear Recent History menu.