Hello, please, send us more details regarding the problem.

Okay

Hello. Just go to the extension settings and unmark the "Advisor" checkbox.

Hello, install the extension at this link:

https://addons.opera.com/addons/extensions/details/savefromnet-helper/?display=ru

Hello, direct links to the installation.

Install the extension here in these links.
Google Chrome. First 1 then 2.
1. Tampermonkey black: https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo?hl=en
2. Savefrom.Net: https://download.sf-helper.com/chrome/helper.user.js?ts=1455972944179

From the OK site on Android, the extension does not download the video, there is no technical capability.

Hello, please, send us more details regarding the problem.

Hello, in order to help you better I need the following information.
Please, send me the information listed here: http://en.savefrom.net/user.php?info=1

Do you download via the extension SaveFrom.net Helper or the website SaveFrom.net?