Thank you for this add-on, my scripts (GClh II, GCvote, GME) work again in FF 57. I love its dashboard.

I have found an issue: if I disable Tampermonkey (with clicking on the script's icon on the toolbar and clicking on "Enabled") and then enable it back, it does not restore its function and none of my scripts work again until the browser restart. That is a bit inconvenient.

EDIT 2017-12-18: it is fixed in the TM update which has just arrived, thank you. :-)