Rated 4 out of 5 stars

I really want this app to have 1080p.

Rated 3 out of 5 stars

there is no higher than 720p option of 4k video at 0.979 version,and can you fix software video rendering to accelerated video rendering ,btw this is a good addon

Somewhat helpful, though it has some annoying flaws and design choices. Rated 3 out of 5 stars

From my experience with SmartVideo, I've noticed that although the videos I watch are moving along a little better I still felt a bit annoyed with a design choice in particular that I'll address further on in this review. As for a major flaw however, I noticed that while SmartVideo was installed, I wasn't able to reply to anyone's comments or edit/delete my own comments.

As for the aforementioned design choice, I felt as if the layout of options were obscuring my normal YouTube experience a little too much.

I will consider trying SmartVideo again if the comment system issues let up at some point but for now I think it's best that uninstall this add-on.

Black screen Youtube videos with audio only- SOLUTION: buffering while paused issue Rated 4 out of 5 stars

Helpful addon. After experience a rash of black screen Youtube videos (some change on Youtubes end no doubt) which appeared to be mostly on the most recent uploaded video on various Youtube channels which contained an ad, I disabled various addons thinking it was Adblock causing the problem. After several different configurations of differnt addons, it appears that the SV buffering while paused option for Youtube is causing the black screen with audio glitch.

By unchecking "Ensure that videos are buffered even if they are paused" my Youtube videos now play normally, with all other addons enabled fully. I suspect any addon using a similar buffering while paused feature will cause the same black screen issue. If there is a way of fixing this conflict so the videos can still buffer while paused, that would extremely helpful- one of this addon's best features.

Hope this helps others having the same problem. YMMV of course.

Great, but flawed Rated 4 out of 5 stars

Great plugin, but three problems:

-no speed control on html5 videos

-breaks related-video wall (displayed at end of all youtube videos). When you click a link in the video wall, the page updates, but the video does not (still loaded with previous video).

-embeds start playing automatically, even if SmartVideo is set to NOT play embeds automatically.

This user has a previous review of this add-on.

Some issues now fixed Rated 5 out of 5 stars

With the new update to this add-on I'm glad to see that he managed to incorporate using the HTTP player if you have forced buffer selected, which is what the older versions of this add on used and why they always worked. so now thats just how this works too, which is much better than what was originally used in the previous version.

the pop-up bar at the bottom of the videos is now back, and in general the other features for the most part seem to work well again. at least as always the video quality control has always worked. The only still existing issue is when you have it selected to control embedded videos, it will break google+ comments on youtube, and from what others have said, also on most google+ features in general.

otherwise glad to see this add-on wasn't abandoned and made a pretty solid first step to fully functional recovery :)

This user has 3 previous reviews of this add-on.

Rated 2 out of 5 stars

After the latest Firefox patch, the add-on doesn't work well anymore. Doesn't stop and let it buffer, it just start the video right away or when i click on you-tube video, it doesn't load but show like you already watched the video so need to reload and also video error's. Hopefully it can fixed, cause this a useful add-on.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Rated 5 out of 5 stars

doesn't work anymore. One star. Also has been giving me video errors on Chrome.

Edit: looks like it is working again. Edited the review.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Rated 1 out of 5 stars

Gets one star right now because it is completely and totally broken and useless. Doesn't even load anymore and Youtube's buffering system is again making the site unusable. For an addon that solicits donations I would hope that they would keep up with the changes Google makes. Let's hope updates start happening again.

In the meanwhile there is a great Greasemonkey script that works just as well; http://userscripts.org/scripts/show/49366

This review is for a previous version of the add-on (0.978.1-signed.1-signed).  This user has a previous review of this add-on.

Worked so well... Rated 1 out of 5 stars

...for a few years but it finally stopped working. Doesn't show up when I mouse over the video and any settings I made have no effect. It also stopped working for me in Chrome. Would love a fix.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Great idea! If it worked.. Rated 2 out of 5 stars

If I have the "Start buffering right away" checked, almost all embedded videos starts playing, even though I've got the "Start playing right away" and etc. unchecked.

This is ridiculously annoying, especially on websites with many embedded videos! Other functions seems to work very well though, but most settings under "Buffering Options" are buggy...

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Only controls video quality Rated 4 out of 5 stars

This addon now only controls the video quality.
Also youtube gives me a lot of 'an error occurred....' with the addon enabled. Youtube must have changed something that broke this addon.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Rated 1 out of 5 stars

It does not work for Firefox anymore for many months and I waited for the problem to be fixed, but nothing has been fixed. I have the latest Firefox 26 using Windows 7 and it seems as if I hadn't downloaded the add-on, even though I did and it is listed in the add-ons manager. When I attempt to press "open preferences", nothing opens. I remember that it had an icon in the add-on bar, but it does not exist anymore, even when I search for it from the "customize" option. I removed and added the add-on again, but the problem persists.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

For those who can't reply Rated 4 out of 5 stars

Disabling "control embedded videos" fixed my google+ reply problem otherwise haven't found any problems.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Rated 2 out of 5 stars

I love what this addon does, it does a great job of making YouTube behave in a controlled manner. Unfortunately it causes some severe issues - YouTube comments reply boxes won't open, and worst of all, it makes Firefox constantly stall for a moment every few seconds, something that makes my browsing experience completely intolerable. Author, please fix these issues so I can resume using this very handy addon, and I'll happily increase my rating here!

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Rated 2 out of 5 stars

@chaotic.sys Yes, this option also causes javascript error in Google+. It won't load photo when clicked on it. It took lot of time for me to figure out this addon was causes it. I see lot of people have trouble with it. Maintainer should do something about it.

This review is for a previous version of the add-on (0.978.1-signed.1-signed).  This user has a previous review of this add-on.

Rated 4 out of 5 stars

It sounds strange, but
when "Control embedded videos" is enabled, a new Google Maps does not work - it's like frozen.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Rated 2 out of 5 stars

Unfortunately only 2 stars. This is awesone, but when I have installed smart video, I can't reply to comments on YouTube. Comment window does not open.

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

Causes major issues with Google+ Rated 3 out of 5 stars

While I like it and works great here, when this plug in is enabled, I can no longer post replies to posts in Google+ as it messes up the reply box and you can no longer post replies. Disabling this plug in makes the issue go away. Please fix!!!!

This review is for a previous version of the add-on (0.978.1-signed.1-signed). 

youtube comments broken by control embedded video's Rated 1 out of 5 stars

As screamingmonkey stated below, the youtube comment reply boxes are not loading correctly, but only if Control embedded video's is enabled.

there is the other issues, like paused buffering not working, but this is the primary problem right now.

This review is for a previous version of the add-on (0.978.1-signed.1-signed).