I recommend this extension Noté 5 sur 5 étoiles

For the users who have a problem to display this extension in Youtube , its works for me , and this is what i have do to solve this small issue :
1- I have just add a another extension his name is : YouTube Flash Player or others .... , his aim is to change the player of youtube video from Html5 to Flash player , and this is it when you will refresh your browser in youtube it will appear below the video . :)

Not working for me Noté 1 sur 5 étoiles

:-(

Its the thought that counts? Noté 1 sur 5 étoiles

But nothing works as it says.

Break Youtube with latest version of the site Noté 3 sur 5 étoiles

Youtube is bringing a new version of his site (some kind of Full Screen mode).
With this addon loaded, it will avoid the perfect loading of the video, the page contents (including comments).

3 stars because this app was usefull in the past, now, I believe we can delete it if no fix came out.

Buffering YAY! Noté 1 sur 5 étoiles

With this add on YouTube videos will actually buffer and you can rewind the video without the buffer being deleted. Only issue is that it COMPLETELY BREAKS YOUTUBE, YOU MUST REFRESH THE PAGE TWICE TO WATCH ANOTHER VIDEO, first refresh on the page you clicked the video on, then again on the video page as you get the error occurred message in the player with static in the background, if you don't follow these steps the last video you watch will not unload and will play on any page on YouTube. Tested on Pale Moon x64

Update: It's crap, disabled for now.

Cet utilisateur a une revue précédente sur ce module.

Good for Flash videos Noté 3 sur 5 étoiles

I have to agree with the previous commenters in that it does not seem to work for HTML5 videos despite what the description says (tested on FF49).

For Flash videos it was pretty much perfect though (good set of features, not too overloaded) so if you still use that I can recommend this add-on.

Worked with flash, now is dead Noté 1 sur 5 étoiles

This worked with the flash player, but now that I have decided not to use that anymore, it isn't worth anything. Don't waste your time.

Ineffective on Palemoon Noté 1 sur 5 étoiles

Thanks for a very nice looking featured add-on. Would be totaly handy for low-pro and older machines!
Unfortunetely it's totaly ineffective on Palemoon (a pre-Australis light-weight ffx fork, v26.3/26.4 here). EDIT: as well on ffx v48 and ffx-Aurora v50.

no me funciona Noté 1 sur 5 étoiles

no me funciona ninguna de las opciones... si me pudieran ayudar lo agradeceria.

Muy bueno Noté 4 sur 5 étoiles

Lo único que e notado es que la configuración de 575 no funciona muy bien, no lo coloca en 480, si no en 360 aunque el video tenga la opción. Del resto me funciona excelente.

Google+ doesn't work With this add-on Noté 2 sur 5 étoiles

I think Very usefule addon,but this addon with Fierfox 48.0b5 don't read Google+.

Still works! Noté 5 sur 5 étoiles

It still works if used with any of the flash player extensions on this site.

Не работает Noté 1 sur 5 étoiles

К сожалению, с последней версией Мозилы и ютуба, дополнение не работает. :(

Noté 4 sur 5 étoiles

good

Garbage Noté 1 sur 5 étoiles

As I downloaded this, I had a feeling I'd done so before. When I went to the settings page for the add-on, I remembered I had indeed used it maybe 5 years ago. It didn't work then, and it doesn't work now.

Will still work with additional add-on (5 stars) Noté 5 sur 5 étoiles

Because of the switch to HTML5, this add-on doesn't work as it used to unless you force the videos to play through flashplayer, but that's something you can do pretty easily. I use the 'YouTube Flash Player' by Maxime RF. With the addition of that add-on, this one works perfectly again.

I think that this is a great add-on because I hate how youTube videos gobble up bandwidth (and contribute to my data usage limit) regardless of whether I actually want to see them or not. With this they don't buffer unless I click on them- rather than automatically doing so unless I stop them.

Mozilla Firefox 64 bit Noté 5 sur 5 étoiles

please fixed on firefox x64 bit HTML5 tested Windows 7 x64 bit

Great, but... Noté 4 sur 5 étoiles

It's great for flash player YouTube, doesn't work for html5 though.
It allows to set many things making YouTube more convenient to use.
Unfortunately it has some bugs.
First it sometimes doesn't start buffering right away and I have to manually start it.
Second is that sometimes doesn't load properly. Pop-up window shows only one line with donation and global settings and auto-pause doesn't work then.
They're annoying, so I hope it will be fixed.
One more thing. I don't know what's a desktop notification, but why can't you give an option to use a build-in notification in Firefox?

Don't seem to work anymore Noté 1 sur 5 étoiles

I have tried this addon for 3-4 days and it seem to have no effect on youtube videos. I have tried different options but no change. Read somewhere that it can be issue with html5 but I have really no idea.

¡Good Idea! Noté 3 sur 5 étoiles

Hi,
I just want congratulate for what you did, it's a really great idea!.

Just few things, after installed it on Debian Debian GNU/Linux 8.2 (jessie), XLDE desktop and try with Firefox 42 and Youtube, didn't show anything (the options when you move the mouse cursor over a youtube video), not working at all.
I tried the same on Chrome for Debian and work perfectly in the same computer and OS.
Do you have any idea what could be wrong?, may be some paths?.

Thank you!