I loved this extension until recently when the latest update comepletely broke it so it's making my browser crash everytime I try to use it.I've had to disable it since the new patch started closing my browser down.I'm on Firefox v56 on the 64 bit install and that's what started crashing after this new update.
It was working fine on my other 32 bit install of Friefox v39 so I might see if downgrading to that one might help.