FlashGot is a free and open source add-on for Mozilla Firefox meant to handle single and massive (“all” and “selection”) downloads with external download managers.

The program recognises and supports several dozen different external download managers for Microsoft Windows, Mac OS X and Linux, and allows these to be integrated into Firefox. When a user chooses to download a file, FlashGot offers to send the file to a download manager that it has detected.

The software supports metalinks for mirror and checksum information. It can send a list of links selected by the user or a list of links for all images on a certain web page to a supported download manager. It can detect video embedded in web pages, including on YouTube, and send their download links to download managers.

More features
* Support for Turbo DTA and DTA
* Support for POST and leech
* Supports ftp2share.net

Conclusion
FlashGot bypasses the internal Firefox downloader, allowing the user to access supported external applications such as FlashGet, Fresh Download, GetRight and LeechGet.