Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

ค้นหาฝ่ายสนับสนุน

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

เรียนรู้เพิ่มเติม

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

more options

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.

การตอบกลับทั้งหมด (1)

more options

Hello JakeinSpain,

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