All downloads act to overwrite existing filenames instead of automatically adding ' (1)', ' (2)', etc. See following video for a quick demonstration: https://www.youtube.com/watch?v=oStlGAqTFeM See source code here: https://github.com/zach-adams/downloads-overwrite-already-existing-files Chrome Web Store: https://chrome.google.com/webstore/detail/downloads-overwrite-alrea/lddjgfpjnifpeondafidennlcfagekbp I am not responsible for lost/overwritten data. This does not compare the contents of files or the file modification time before overwriting, it only compares filenames.