Rated 4 out of 5 stars

Version 5.7.27, Firefox 50.0.2, Linux

I love it. It's very quick, but for some reason Firefox frequently disable it, claiming that it's not verified for use in Firefox.
Removing it and reinstall it solves the problem for a while.

This review is for a previous version of the add-on (5.7.27). 

Please contact us at cytsaver@hotmail.com and we will try to troubleshoot this issue, thanks.

Rated 4 out of 5 stars

Same with v5.7.26,all downloaded mp3 file gone.

This review is for a previous version of the add-on (5.7.27).  This user has 2 previous reviews of this add-on.

Please contact us at cytsaver@hotmail.com with a link to the video you are having trouble with, thanks.

Rated 5 out of 5 stars

Thank you very much, I really like the addition.
There are some offers which has sent to email, hope developers will take them into account.

This review is for a previous version of the add-on (5.7.26). 

We did receive your email, thanks for the suggestions. We will consider them for a future update.

Thanks for the review!!

Rated 3 out of 5 stars

I can't download all videos in 1080p, only the ones on my account and some older ones...

This review is for a previous version of the add-on (5.7.26). 

Please try v5.7.27:

https://addons.mozilla.org/en-US/firefox/addon/complete-youtube-saver/versions/

If it doesn't fix your problem, contact us at cytsaver@hotmail.com

Rated 5 out of 5 stars

Thank you for this addon. I love it. I can now download 1080p videos.

Hint for new users: When selecting the ffmpeg directory, don't select just the parent folder, but select the "bin" folder in the ffmpeg directory.

This review is for a previous version of the add-on (5.7.26). 

Thanks for the 5 stars!!

Rated 5 out of 5 stars

El mejor complemento para descargar videos de youtube que ha existido hasta ahora para firefox

This review is for a previous version of the add-on (5.7.23). 

Gracias por el review!

Rated 5 out of 5 stars

Complete control over YT downloads, you can get the audio alone if you like, do conversions, keep the original streams, even save complete pages.

Supports Pale Moon, too. Not much left to ask. Well done, thank you!

(wish they could get more Patreon support - we'd enjoy it on all websites, not just YouTube)

This review is for a previous version of the add-on (5.7.23). 

Thanks for the review!

Rated 5 out of 5 stars

Well, this add-on is just excellent, providing that you use it along with ffmpeg

This review is for a previous version of the add-on (5.6.67). 

Thanks for the 5 stars!

Rated 5 out of 5 stars

В этом видео
<a href="https://www.youtube.com/watch?v=-C7Cg882_zA" text2link="true">https://www.youtube.com/watch?v=-C7Cg882_zA</a>
разрешение 1080p качает только 2мб кусочек

"Recently, Youtube has begun splitting some of their videos into multiple segments. CYS needs to download all these segments, stitch them together and mux the audio. The video in your link is one of those videos. We are already working on a solution for this...an update should be ready soon. Thanks for your review."

Понял, спасибо за быстрый ответ.

У меня получилось скачать с командной строки, может это поможет вам

youtube-dl -o "D:\1\%(title)s-%(id)s.%(ext)s" -f 137 https://www.youtube.com/watch?v=-C7Cg882_zA

это без звука, со звуком вроде 137+140

This review is for a previous version of the add-on (5.6.67). 

Recently, Youtube has begun splitting some of their videos into multiple segments. CYS needs to download all these segments, stitch them together and mux the audio. The video in your link is one of those videos. We are already working on a solution for this...an update should be ready soon. Thanks for your review.

Rated 3 out of 5 stars

Configuration says ffmpeg detected (linux), I use the newest version (5.6.67), and firefox v45. What may be the problem?

This review is for a previous version of the add-on (5.6.57). 

Checking this now, please contact us at cytsaver@hotmail.com so that we can respond.

Rated 5 out of 5 stars

It works well

This review is for a previous version of the add-on (5.6.57). 

Thanks for the review!!

Rated 5 out of 5 stars

I really was frustrated by a bug. The dev noticed it was important to me and helped me out with a new pre-alpha release which fixed things for me. 6/5 stars. I'm treated like a king and I won't forget.

This review is for a previous version of the add-on (5.6.57).  This user has a previous review of this add-on.

Glad we could be of help. Thanks for the review!

Rated 1 out of 5 stars

It does not save 100% of comments. For example a youtube video with 1000 comments.

This review is for a previous version of the add-on (5.6.57). 

If you tried saving comments then you know the option says "Save Comments Viewed, Max 2000" (see 3rd screen shot above). If you are browsing through a video’s comments and wish to save what you have read, CYS will do exactly that…save the comments you have read…up to 2000. It doesn' t claim to do anything else.

Rated 5 out of 5 stars

I stand corrected.
After updating to the latest version, it works again.

This review is for a previous version of the add-on (5.6.56).  This user has a previous review of this add-on.

Thanks for the 5 stars :)

Rated 2 out of 5 stars

Options say something about icon and arrow but there's no icon nowhere on GUI or customization screen so there's no way to "activate" downloading.

edit: I found out the icon is "fixed" (as in: cannot be customized) on the address bar. Which I do not have. At all. Because pentadactyl.

This review is for a previous version of the add-on (5.6.53). 

Fix Using Firefox 46 and CYS v5.6.56:

After installing CYS, restart Firefox and then the Icon will be movable. If you enter "Customize" right after installing v5.6.56, it will not be movable.

Contact us at cytsaver@hotmail.com if you are still having problems.

Rated 4 out of 5 stars

it seems CYS is unable to Download/mux 1080p content → AGAIN !!?? i see the A/V files appear in browser but for some reason are not downloaded and therefor is cys unable to mux it !!?

mozilla : 45.02
CYS: 5.6.53

This review is for a previous version of the add-on (5.6.53).  This user has a previous review of this add-on.

We are working on a solution to keep these changes from breaking CYS so often (signature encoding/decoding). An update will be ready soon, please bare with us, thanks...

Rated 5 out of 5 stars

I'm glad to hear to CYS developers reached their 1st Patreon goal. Best news I've hear all week. Now we can get back to downloading 1080p 60fps videos from Youtube again. Yay!

This review is for a previous version of the add-on (5.6.53).  This user has a previous review of this add-on.

Thanks for the 5 stars!!

Rated 5 out of 5 stars

Please consider supporting the author on Patreon so that he can continue development. I created an account there specifically for this purpose -- it's quick and easy, and definitely worth it for such a useful tool.

This review is for a previous version of the add-on (5.6.53). 

Good news...we reached the 1st funding goal on Patreon!! Thanks for your support!

Rated 5 out of 5 stars

This is the best YouTube add-on out there that can download MP4 videos at their native resolution, or MP3 at high bit rate. Very versatile and powerful. I truly hope development can continue as I cannot find a single, or even combination of add-ons that can do what this does.

This review is for a previous version of the add-on (5.6.53). 

Appreciate the support, thank you!

Rated 5 out of 5 stars

This is the best Youtube downloader, probably even better than my long time favorite "Youtube video and audio downloader". It's slick and functional. Perfect for usage with "HTML5 everywhere".

However, it makes stupid assumption about ffmpeg location on Linux, it should search folders of standard $PATH or at least make assumption about /usr/bin where all such binaries are. Also it shouldn't silently create folders, especially in non-standard location like ~/Downloads. At least it should assume FF default download folder.

This review is for a previous version of the add-on (5.6.49). 

Thanks for the 5 stars!! Please contact us at cytsaver@hotmail.com...we will look into this.