Last modified: 2005-03-21 13:16:06 UTC
If a search returns no results, the layout of the page implies that the 'save search' box is really a 'search again' box. I often type a new search term into this box and end up accidentally saving the search. I would suggest that the page includes the 'search bugs' form (with all 3 boxes), and a separate 'save this search' box to avoid this problem and to aid refining of your search terms.
This is a general Bugzilla problem and should be reported at http://bugzilla.mozilla.org
OK - I have reported it there (bug no. 287047)