Rated 5 out of 5 stars

by Firefox user 5c0905 on Sept. 21, 2016 ·

Are you working on e10s compatibility, Lumox?

This review is for a previous version of the add-on (1.1.0.3). 

by Lumox (Developer) on Sept. 29, 2016 ·

Currently no, not until the Firefox developers have added a lot more functionality to their web extension API's. Without more functionality, Save Images will become virtually useless with most options being removed.
And I am not going to make it e10s compatible and then have to rewrite my addon again to make it into a web extension.