From their add-on message on youtube: 1080p/mp3 downloading has been limited to PRO users. Read more at - https://videodroid.org/pro_upgrade.html.

requires an upgrade to work.

I am getting really tired of this thing forgeting I donated, not once but TWICE! FIX IT!

PRO Upgrade worked for 2 months and stopped working. Submitted problem alert via website and email; Dishita does not even open problem emails or webpage problem feedback - they simply send the same form response to everything - all you get is some useless links and you are left feeling like it's your fault for not fixing Dishita's poor programming.
PRO Upgrade is therefore not worth the price - there is no support whatsoever for any problems.
Zero Stars.

It stopped working and the developer moved to a desktop version. Someone reported that the developer is still taking money for the extension. Should be removed and NOT be a recommended Mozilla add-on. Was very good back when it worked.

The add-on is FREE to download, but as soon as you try to actually use it, it tells you you need to BUY the PRO VERSION!!!

Wants you to pay to actually use the addon now. Don't bother.

App' gratuite qui ne sert à rien, sauf à payer pour la version 'Pro'. Sinon, pas moyen de télécharger quoi que ce soit !!

You can't download any video or audio file , this add-ons keep ask you to buy the pro version , so i remove it

It is same old hell of advertise as free and harass user for pro.

you have to be premium to download from this extention

Pro upgrade necessary for mp3 downloads even at 128kbps.