Chrome Build: the newest, 33+
A Chrome Extension extracts certain urls from currently viewed site and then downloads a subset of them (quite often hundreds of files).
It is impossible when "Ask where to save each file before downloading" Enabled (as of 70.0.3538.77). The corresponding Chromium bug is:
Bug 417112: chrome.downloads.download ignore saveAs
Moreover setting filename in chrome.downloads.downloads()
also doesn't work.
Bug 758094: Extension can not rename downloaded file