Comment 26 for bug 1401454

>We have a nsIFile.createUnique, you might want to use that instead:
>>+ tem.AppendInt(i,10);

Yes thats right, but here we require to create unique if the condition says so. And reuse the unique if possible. The latter feature missing in CreateUnique()

>What happens if the file system is FAT/NTFS or something similarly exotic?

Could you please explain, I didn't get your point. The functions used are all platform independent. And the directory structure is still the same in FAT/NTFS as in EXT3/4 .