UC Browser video downloader

[Sabali]

I heard UC Browser has this add-on (video downloader) that allows you to download streaming video from any site. It wasn't available in their add-ons 'store' so I go it from a third party. After installation, it shows in the add-ons list but I don't see any 'download sign' when watching a video on youtube. Is there something I'm not doing right? Or that feature doesn't work anymore?

Help a fella..

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