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.

Search Support

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.

Learn More

I can't download & convert a video on Youtube through Firefox add-ons on Mac OS X 10.9.4

  • 6 replies
  • 5 have this problem
  • 11 views
  • Last reply by FredMcD

more options

Dear,

I am trying to download & convert a video on Youtube through Firefox Add-ons on Mac OS X 10.9.4. When I download there is a message: " [ JavaScript Application ] Conversion requires an external application that appears to be missing on your system. Configure conversion ? ".

I downloaded Java and JDK for Mac but the same message still appears when I download or download & convert a video from Youtube.

Kindly would you please help me in this issue ?

NOTICE: I AM A NEW MAC USER.

Thanks and regards, Omar Bassiouny

Dear, I am trying to download & convert a video on Youtube through Firefox Add-ons on Mac OS X 10.9.4. When I download there is a message: " [ JavaScript Application ] Conversion requires an external application that appears to be missing on your system. Configure conversion ? ". I downloaded Java and JDK for Mac but the same message still appears when I download or download & convert a video from Youtube. Kindly would you please help me in this issue ? NOTICE: I AM A NEW MAC USER. Thanks and regards, Omar Bassiouny

All Replies (6)

more options

Hello, Can you tell us which addon you use?

more options

Go to the Mozilla Add-ons Web Page {web link} (There’s a lot of good stuff here) and search for what you want.

You could also download the video as is, and use a free converter program to get what you want.

more options
more options

I've downloaded Wondershare but while downloading it stops and there's a message says that Failed obtaining video info !!!

more options

Download has worked but the problem that the video itself was in low quility and I was downloading in HQ. Then, I used Wondershare to convert it to MP3.

Thank you very much for your cooperation :)

more options

Go to the Mozilla Add-ons Web Page {web link} (There’s a lot of good stuff here) and search for download and convert.

Separately !