FIRESHOT DISABLED BY FIREFOX 60.0

I hope there will be a FireShot update that will fix this issue soon. Thank you for developing this fantastic add-on!

EDIT 1 >>> STILL NOT COMPATIBLE<<< (May 10, 2018): I just tried to install the add-on using a new (untouched) Firefox profile....it still says it cannot be installed because it is not compatible with Firefox 60.0 That indicates to me that your add-on needs to be made compatible with 60.0.

EDIT 2 (May 12, 2018): Since this developer doesn't believe that his add-on isn't compatible with Firefox 60.0, I went looking around for a replacement add-on. I found one! "Nimbus Screen Capture" does basically the same thing as Fireshot (free version)...maybe even better. Anyway, anyone who is tired of waiting for Fireshot to update can give "Nimbus" a try. Hope this helps Firefox 60.0 users out there. Have a nice day!