The application works with proxy servers, if you need it. The team also plans to introduce support for FTP and P2P services (torrent, dc++, etc.).
At the moment, the download Manager does not offer integration with the browser, but I hope that the developers will add this feature in the future, because the application is in a state of active development. You can almost completely control the work of the Manager with the indicator and you can enable or disable plugins available.
Installation into Linux Mint:
sudo add-apt-repository ppa:ra9oaj/spolab sudo apt-get update sudo apt-get install rexloader