Trouble viewing d/l'ed pics

[shengchieh]

Once in a awhile, a default application does not, open a file I force it open in another program.  In your case, firefox, gimp, image viewer (probably default), LO, and other programs all open image files.
Start one of those program.  Then file -> open + navigate to where you saved the jpeg files and see what happen.  For images, I found gimp almost always work.

Sheng-Chieh