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I cannot download youtube videos with the new Mac firefox update?

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When I use the download button under the Youtube video, I choose the type of MP4 resolution and... All I get is a reference file with zero bytes? I have the extension ... YouTube video download.... it used to work well? Any Ideas? I have looked to see if the content is blocked. I am using avast virus protection.

When I use the download button under the Youtube video, I choose the type of MP4 resolution and... All I get is a reference file with zero bytes? I have the extension ... YouTube video download.... it used to work well? Any Ideas? I have looked to see if the content is blocked. I am using avast virus protection.

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Hello JakeinSpain,

Youtube often blocks video downloaders. Have you tried updating your downloader or trying another extension?