On a Fine morning when I woken up and Open my Firefox 2.0 and trying to saving an image form a website it is not saving.Take a look how to solve this.
Sol:Close Firefox go to
C:\Documents and Settings\your username\Application Data\Mozilla\Firefox\Profiles\7nbwpar3.default
here you can find download.rdf file rename it to xdownload.rdf
Restart your Firefox and problem will be solved