xdman (download manager)

Xtreme Download Manager is a powerful tool to increase download speed
up-to 500%, save videos from video sharing sites and integration with
ANY browser.

On Google Chrome|Chromium|Vivaldi,Opera >12.16, type on URL bar:
chrome://extensions Check "Developer mode", click on "Load Unpacked
extension" and select ~/xdm-helper folder.

On Mozilla Firefox, simply drag and drop file ~/xdm-helper/xdmff.xpi.

For other browsers, go to Tools/Browser Integration.

Some features present in Xtreme Download Manager are:

 * Superfast speed;
 * Save video from any website;
 * Supports any browser;
 * Runs on any Operating system;
 * Free, No-Adware and Open source.

Note: p7zip is build-time dependency, not runtime dependency.