FlashGot

FlashGot was an add-on for Firefox that allowed interoperability between the Firefox browser and external download managers. It is no longer compatible with later versions of Firefox. It is not itself a download manager but is designed to allow the Firefox interface to be extended to connect to the selected external download manager. This avoided launching the download manager as an independent application and cutting and pasting the across the links of the files that need to be downloaded. Forked browsers like Pale Moon and Waterfox are also supported.