I just installed defraggler but can't find out how to select fragmented files so as to avoid an entire defrag. I see that there are some files that could be defragged but how do you tell what they are?
I don't think that it is really "needed". It is a freeware application that you may, of course, donate to if you value it. Maybe you could donate the software needed to do the kind of update that you mention
I switched from Mozilla to SeaMonkey and just installed CCleaner. I think it's a great program (i defected from Webroots WindowsWasher).
I do notice that it doesn't clean the address bar.