Always loved this extension. I hope it will eventually support the upcoming vertical tabs (currently in Firefox Nightly).

Does it work and do what it says? Yes. But it is also unusable for daily use because it's takes a significant time (one-two seconds) for recolourising the tabs when switching between them. This looks jarring to the eye. It also takes some time to readjust when closing a tab.

Makes the tab bars much less distracting. Thank you!

it works but sometime, dunno maybe from my end

Works beautifully. Two suggestions:

1) The possibility to customize the level of desaturation;
2) The hability to desaturate tabs' titles as well (while being able to separetly customize the level for that as well).

Any chances we can get these, Tulirebane?

I don't know what happened but my favicons now resaturate. I've changed nothing and am not aware of any updates, but it works now and I really like this app.

Be careful when testing this extension! I was testing with the Mozilla Add-Ons page, which doesn't work with the extension. It works with everything else. My only problem is that tabs don't gain color when you go back on them, but I'm sure that'll be fixed and am anticipating that update.
No websites currently become recolored after I swap to them.

Firefox 57.0.2 64bit
Windows 10 Pro 64bit

doesn't work. Colors are still there

doesn't work with nightly (v59.0a1) makes an icon a white square.