Rated 2 out of 5 stars
I use this all the time but the only way I can continue to do so is by running older versions of T-bird. I am sticking with T-bird 45.8.0 because Auto Resize has a bug with T-bird 52.6.0 - when you create an email and save it as a draft after resizing images in the email, those images aren't saved correctly in the draft and T-bird hangs when you try to open the draft. I reported this in the fall of 2017 to the developer but it has not been fixed yet. I hope it gets fixed.This review is for a previous version of the add-on (0.15.2).
This has been fiexed in v0.15.3 by adding an option to remove undo information when saving as draft.