Seems to me that something changed since last update, while I'm watching udemy corses, and when I jump to the next course, the volume reverts to 100%, but I have it set to 200% (and I see 200% in the extension) ?

Absolute necessity. Two issues:
One, the volume often resets to 100%, tho the toolbar button will continue to show a higher volume. The slider itself will be back at 100. Two: It would be great to have hotkeys to adjust the volume without clicking the button. Then I could set my touchpad to adjust the volume with gestures.
BTW, I reviewed all of the code and didn't see anything to worry about it.

Straight forward, small and works like a charm.

Very useful extension if you want an extra volume boost to your cheap weak speakers.
One little bug: the number on toolbar button doesn't update when I change tabs, so it looks like it's a different volume. It only updates when I click on it.

nice

This works with 99% of video, a real help on a laptop.

Works Good Wish it would stay on..

Pretty good. If you could work on the little audio cutout that happens when you adjust the volume for the first time it would be perfect. Maybe a dark theme too.

Not bad at all. Thank you for the free add-on.

Doesn't work for some websites, but I can understand its probably something to do with them and not the addon.

Good for raising volume or lowering volume for a specific tab. Great for making Youtube Music quieter.
Can adjust volume in 10% increments, from 0% to 600%. But does not save volume for if page is reloaded or closed. Adjusts volume for just one tab, not the whole website.

Прекрасно помогает справиться с тихими видео, жаль что не работает с Яндекс.Музыкой