best addon thank you so much

I use this extension daily to experiment with songs on YouTube. Works well.

I use this when playing guitar, to retune tracks in E to Eb or D so I can play along on instruments in those tunings. It does affect the sound if you change the pitch while keeping the speed, sounds a little "out of phase" on the guitars, I guess you'd say, BUT it's easy to use, pitch-accurate and free. Totally workable!

Perfect for Nint*ndo songs on yt ;)

Excellente extension pour permettre de pitch les musiques sur vos plateformes favorites

Tips for those who dont want to trust the extension: you can use the extension to make the changes (and then uninstall it)... as long as the page DOES NOT REFRESH, the voice changes are retained!

Странно работает

works almost perfectly but it stops youtubes built in speedup from working

do ts with speed and pitch 1.2 youtube.com/watch?v=WEQhIdgm0aQ

Works with the speed changer, but the pitch changer does not work properly independently. It will play the audio of the website in its normal key as well as playing the audio of the changed pitch. Sounds horrendous.

Un petit problème à signaler, avec les raccourcis clavier + et -, la tonalité change, mais aussi le tempo :-/
Sinon, ça marche plutôt bien

Well, the pitch change is very low quality, rather unusable.

Perfect add on for karaoke. A must have!

Love it! Now I can finally sing karaoke in lower keys!

This addon is pretty much as good as it gets when it comes to Speed/Pitch Changers, on ANY browser. This addon absolutely TRASHES on the largest one on Chrome (transpose.video), with the latter having to thank it after. Obviously nothing even remotely compares on Firefox or anything else. Excellent work easily one of the best addons a web browser can have, and a genuine W for Firefox.


I strongly agree with the other review on this being very worth porting to Chrome though.