Rated 5 out of 5 stars
Love the support for e10's/multi-process in the latest developer version. However, the latest version 2.3/2.3rc99 (released April 9) broke the add-on completely in Firefox 53. Nothing loads or works within the reader. Please fix. Thanks and keep up the great work!
EDIT: Thanks for the quick fix! Working great now!
Terribly sorry, I made a last minute mistake after testing. Versions 2.3.0 and 2.3.0rc99 contain the fix.