It's great!
Before finding this extension I used to have trouble hearing some YouTube videos at full volume. Now using this extension I don't even have to change the volume to hear the videos, just adjust the top slider. Also I love how it resets each time so everywhere else I go isn't too loud.

It's working well.Thank you!

Some youtube videos or livestreams volumes are too low. With this I don't have to turn up my receiver all the way up.

Love this add-on. Facebook messenger always blasts my ears but now whether it's that or youtube videos playing back at high decibels, I can lower it to my liking.

Please add vk.com support for music. It's so annoying.

Очень полезное дополнение. Для тихих роликов - самое то.

Wonderful audio boost for web audio, very very thankful to developer for very useful app. 5 Star.
I request to developer; please increase the volume gain a little more in the extension script.Thus we can more boost, this is not harmful to speaker because the main volume control is in our hand so we can adjust at desired level. Regards

I was looking to increase the volume of a video I was watching. With SoundFixer, I didn't need to plug in my speakers!
Great job guys and thank you!