This break many things, including YouTube playback speed, Google Drive audio playback, Google "define" feature's audio (when I look up a word using by searching "define", it provides a clip of that word's pronunciation, which can't be played with this add on)

I can't get it to work with Spotify on a PC. I'm looking into it. Probably me.

When trying to submit a bug report on your site I get the following 403:

"ErrorResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
Error>
Type>Sender
Code>AuthorizationError
Message>User: arn:aws:sts::230206250052:assumed-role/Cognito_FeedbackMybrowserUnauth_Role/CognitoIdentityCredentials is not authorized to perform: SNS:Publish on resource: arn:aws:sns:us-west-2:230206250052:Feedback_M
/Error>
RequestId>7065c039-d297-59e6-8fed-974b85a41e2a
/ErrorResponse>"

Reason for 3 stars:
In Firefox, this add-on breaks a variety of video sites and gifs e.g. streamable.com, gifs on reddit when using res. e.g. "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://giant.gfycat.com/FlatAppropriateGrouse.mp4. (Reason: CORS header ‘Origin’ cannot be added)."

FUCKING NICE 💜

Great equalizer, though since yesterday playback speed on YouTube broke. I hope that you can fix this in the next update because it's a great equalizer.

would have been a five star review if it didn't break the youtube playback speed

It makes all the gifs stop playing.

Didn't do anything. Did not work with Firefox 77.0.1

Could you remove the items of the right-click menu?

I just started using this extension a few minutes ago.
After many years of searching, it seems I finally found one that actually works like I want.
Sweet!

Nice, but prevents Video Speed Controller from working even when its not on but just actively installed.