Openload Fast Downloader

This will allow you to download openload mp4's much faster than direct from the site using youtube-dl and aria2


1. Install chocolately
Open CMD

Paste
@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe"
 -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object
 System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" &&
 SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

Paste
choco install youtube-dl

Paste
choco install aria2

2. Create download batch file
Paste this in a .bat file
@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
set /p var1="Url? " && youtube-dl -f best !var1! --external-downloader aria2c --external-downloader-args "-j 16 -s 16 -x 16 -k 2M"
ENDLOCAL
pause

For embedded video urls in Firefox
Right Click on Embedded Video > This Frame > Show Only This Frame > Copy URL from address bar