Hello, I don't consider myself a smart person. Even my mom used to say that I wasn't so bright. But still, should this be so damn difficult? 'beagle-search' is a front end for the beagle desktop search engine. When you issue a query, the application shows you icons (which represent files) with the result of the query. If you click on the icon, the file will be opened with the default application. The problem is that I cannot set the default application by any means. For instance I would like to open jpeg image files using geeqie. I've failed miserably in trying to associate filetypes to applications, using beagle search. The application beagle-search uses xdg-open to open applications. If a filetype has no application associated, then the default handler is firefox (don't ask me why). So I tried to see how xdg-open works, but the man page didn't give me any useful information. The related command, xdg-mime, doesn't work as I expected. I've created a file called geeqie.desktop in the directory /home/damian/.local/share/applications with the following contents: [Desktop Entry] Encoding=UTF-8 Name=Geeqie Exec=geeqie MimeType=image/jpeg Icon=exec NoDisplay=true Then I've tried to associate geeqie with jpeg files by running: xdg-mime default geeqie.desktop image/jpeg The command terminates successfully, and after running xdg-mime query default image/jpeg I get as output "geeqie.desktop". But xdg-open (and therefore beagle-search) still refuses to open jpeg images with geeqie. Any ideas? Thanks in advance.