I have been having problems downloading recently using both Firefox and Safari. Certain things download fine, but other do not. Most recently I was trying to d/l the software for Logitech's Harmony remote and something strange happened. Both from Logitech's site and Version tracker when I tried the d/l of the dmg, it opened up a new window trying to load the file. I tried to right click the d.l button, but it would not allow for the "save as" choice. Eventually I was able to find a mirror and used the right click save as, but it was annoying not to be able to do it right away.
This same thing has happened with several files and I cannot figure out why. Any help would be appreciated. BTW, I have the latest versions on both and am running 10.5.6 with an MB Pro 2.4, if that is of any concern.