UPDATE! Rated 5 out of 5 stars

Needs a new update (2012-08-16)
Thank you for your awesome downloader!

TY! it worked like a charm!

"Try clearing the cookies for youtube.com in your browser"

This review is for a previous version of the add-on (1.4.4). 

Try clearing the cookies for youtube.com in your browser. If this doesn't fix your issues, send an email to deadline.support@gmail.com.

PLEASE UPDATE Rated 1 out of 5 stars

no downloader add on is working now..please update..the only way to download now is using internet download manager to download hd mp4 & sd flv but no sd mp4 wch is wht i need desperately :(

This review is for a previous version of the add-on (1.4.4). 

It's probably an YouTube experiment you can disable by clearing the cookies for youtube.com. I've just tested both the extension and the Greasemonkey script in Firefox and other browsers: it still works for me.
<br>You can help me update the extension to make it work in this experimental interface by opening youtube.com in a tab, pressing Ctrl+Shift+K (or Firefox menu > Web Developer > Web Console), typing document.cookie in the console and pressing Enter. Copy the result and paste it in an email to deadline.support@gmail.com. You should do that before clearing the cookies. This helps me test the new interface. Thanks.

resolution problem Rated 5 out of 5 stars

how do i get the required resolution. my phone supports videos with 320x240 reso. so do i have to convert them after downloading or is there any other way ??

This review is for a previous version of the add-on (1.4.4). 

YouTube doesn't offer this resolution and the script only offers the video formats provided by YouTube. You can use a video editor to resize the video.

Not working? Rated 4 out of 5 stars

I really love this add-on, it's my all time favorite. For some reason though recently, it won't let me download anything? This started happening on August 3rd, 2012. Can anyone help? I really love this add-on.

This review is for a previous version of the add-on (1.4.3). 

Please install the latest version of the extension (1.4.4) from https://addons.mozilla.org/en-US/firefox/addon/download-youtube/versions/ . Hopefully this fixes the bugs. If there are still issues, clear the cookies for youtube.com and the browser's cache.

Recommended Rated 5 out of 5 stars

Yep, this is the best YouTube video downloader. Got tired of popup with "Easy YT dler" and their claims that server space is needed so I should pay, and tested 3 other versions, the ones that work add annoying buttons and are not easy to use. This one is very straightforward. Exactly what I wanted.

This review is for a previous version of the add-on (1.4.3). 

Rated 5 out of 5 stars

esta increible, me funciono de maravilla, para bajar videos de youtube es la mejor herramienta que he visto ! excelente desarrollo :D

This review is for a previous version of the add-on (1.4.3). 

Rated 5 out of 5 stars

Integrates well with youtube, can easily grab videos I want to watch on my mobile or elsewhere, love it. :)

This review is for a previous version of the add-on (1.3.8). 

Rated 4 out of 5 stars

very helpful i have it on Opera browser.
but so disappointed that is not working with large amount of big websites

This review is for a previous version of the add-on (1.3.8). 

Rated 5 out of 5 stars

Great tool for an easy download of videos on Youtube.
Only thing that I'd wish for this add-on is the possibility to directly download only the audio track of a video as an mp3.

This review is for a previous version of the add-on (1.3.8). 

Further to 'OK, but...' Rated 1 out of 5 stars

I don't understand your failure to understand my complaint. Your add-on promised a 360kbps download but I got one at roughly double that bitrate. I didn't play the video in the Youtube player at all. And Get Info on my computer confirmed the file size as 120MB approx.

The one-star rating is for your reply to my original review.

This review is for a previous version of the add-on (1.3.8).  This user has a previous review of this add-on.

360p is not a bitrate and doesn't mean 360 kbps. 360 is just the number of vertical pixels, the resolution of the video.

1080p = 1920 x 1080
720p = 1280 x 720

Please read the extension's description and you'll find all the resolutions, includng 360p. The most common resolutions for 360p are 480x270 and 480x360. And don't tell me that's a misleading name because it's the name used by YouTube (try clicking the setting icon from the player).

WEBM? Rated 4 out of 5 stars

Nice and simple but currently lacking the ability to download the HTML5 WEBM higher quality videos. Free Download Manager + the FlashGot Firefox Addon let's me do so in the time being.

The largest resolution this addon is letting me see to download is the FLV 480p (44 MB in this case), yet with the method I mentioned above, I can also see a WEBM 640x480 (59 MB).

Please add to the script so it can download these larger files too.

Thanks!

This review is for a previous version of the add-on (1.3.8). 

Absolutely Amazing Rated 5 out of 5 stars

Simplest down-loader I've ever used. "One click results" ... exactly as described! Brilliant H-D video quality and much faster downloads than 'YouTube Downloader' without all the hassles and wasted time spent waiting for it to convert to compatible MP4 format or pasting extension files. This one deserves "10" stars ... for speed and excellence! ;-)

This review is for a previous version of the add-on (1.3.8). 

Rated 5 out of 5 stars

I signed up to Firefox just to review this add-on. No fluff, no ads, no crap, just does what it says and allows you to download YouTube videos in the best format available in the uploaded video.
Thanks to the developers.

This review is for a previous version of the add-on (1.3.8). 

The Best I've Found! Rated 5 out of 5 stars

I'd write in CAPS but that'd be a bit rude... nah F^*K IT! THE BEST THERE IS. I've thrown everything I can at this thing and the only downside I can see is that it can't do more than one video at a time. Which isn't a problem really, when it's as fast as it is. I signed up just to post this review. That should tell you something. Wonder if there's a way to subscribe to the creator?

This review is for a previous version of the add-on (1.3.8). 

Super Rated 5 out of 5 stars

I was using it in Opera, this addons is so simple, so usefull!

This review is for a previous version of the add-on (1.3.5). 

nice add-on Rated 5 out of 5 stars

nice add-on....but is it just me or the contribute via paypal thing isn't working? i click on the make donation button and nothing happens.

This review is for a previous version of the add-on (1.3.5). 

It does not download any videos except YouTube Rated 5 out of 5 stars

Any possibility to be able to download a page like that?
http://www.alarabiya.net/articles/2012/01/14/188231.html

This review is for a previous version of the add-on (1.3.5). 

Rated 5 out of 5 stars

It does everything exactly like it's supposed to and looks great!

This review is for a previous version of the add-on (1.3.5). 

Rated 5 out of 5 stars

mp4 is best of all
easy &wonderful

This review is for a previous version of the add-on (1.3.5). 

Works PERFECTLY and... Rated 5 out of 5 stars

I just want to thank you for this plug-in and keeping it updated with every change that YouTube makes. This is one of the handiest tools I have ever used and I want to wish you and your family a Happy New Year. Cheers! Hope you rock 2012!

This review is for a previous version of the add-on (1.3.2).  This user has a previous review of this add-on.

Thanks for your appreciation, it means a lot. Have a great year!