Doesn't work in E10's

[wesleyemw]

Extension doesn't save image when multiprocess in firefx is enabled. Tested in firefox nightly 37.0a1 (Linux x86_64)

[dequis]

Works for me with firefox 49.0a2

[photonometric]

I've been using this right along with the newer builds, though right now I have an old v36 open.

Is there an option that you're enabling in the new builds that disables the addon?