Nice, simple app to increase volume.
Does the job.

Good volume control but could be improved. I would like to see a button to set the control to the last used setting eg. 400%.

I have the same issue as the reviewer a day as this reviewer: https://addons.mozilla.org/en-GB/firefox/addon/600-sound-volume/reviews/2100655/?utm_content=search&utm_medium=referral&utm_source=addons.mozilla.org

This extension prevents me from clipping on twitch for whatever reason. It works great otherwise but this would need to get fixed please!

I am very grateful for the free use of this great add-on. I have some revisions that you may like.
1) ACTIVATION of ADD-ON, CTRL+3, should ALSO work in FULLSCREEN.
2) When opening new TABS, option = A) open TAB with AUDIO reset to normal. B) open TAB with the "600% Sound Volume" add-on setting, that was previously used.
---> Presently, option "A" is default and is not optional. (Having an Option "B" would be my choice since I run the "600% Sound Volume" add-on, at 300% for every TAB, to match the output levels of my computer, with the input levels required by my external sound system)

Does as it says as of now

It works! sometimes you need to re-adjust when you change tabs or refreshing the website.

I wish this worked for Soundcloud too...

Does exactly what I want. However, I find myself wanting MORE!

If I could add something: Hotkeys shortcuts to jump to certain volumes, ex. NumPad5 -> Jump to 500% Volume. PgUp -> +100%, PgDown -> -100%.

I also notice if I set the volume in the tab to 600% (or anything) and there are multiple videos, or the video hasn't started playing, the volume changes will not take effect until I start the video and THEN change the volume. I find myself having to set the volume multiple times on a single webpage due to this. Maybe a "set default volume for this tab" or something like that could be useful.

Thanks!

Funktioniert recht gut!
Bei Disney Plus jedoch überhaupt nicht

Highly recomended

It does what it says but i would love being able to setup preset sound levels. It only offers mute and 100%. Would be great to have a button for other volume levels instead of having to fiddle around with the bar everytime.

No sube demasiado el volumen como para decir que es 600 pero si es bueno, lo recomiendo.