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). 

Good Rated 4 out of 5 stars

super bon

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

Great Addon! Rated 5 out of 5 stars

Works great! Have no issues other users are complaining about. Just sad I have to use this, youtube should get their s-word together. This addon helps!

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

Google won... Rated 4 out of 5 stars

...his fight with the undocumented use of api, unfortunately.
Buffering is no longer working - Smartvideo was unique in that aspect addon

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

SmartVideo 0.977 Rated 5 out of 5 stars

Thanks Clifton_7 for providing the link to version 0.977. The nightmare is over and now I can enjoy YouTube again.

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.

does not work at all Rated 1 out of 5 stars

sorry 1 Star, useless cause youtube autoplay is not blocked at all.

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

Fixes YouTube's horrible buffering. Rated 4 out of 5 stars

Before using this add-on YouTube would constantly just stop buffering on almost every video. I would give SmartVideo the full 5 stars if it weren't for a few annoyances (e.g. it doesn't initialize when opening a video in a new tab.) I am using 0.977 because version 0.978 would result in the "An error occurred. Please try again later" message on every YouTube video.

You can get previous versions of SmartVideo here:
https://addons.mozilla.org/en-US/firefox/addon/smartvideo-for-youtube-mytube/versions/

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