Stopped working after update to FF18 Rated 5 out of 5 stars

Wonderful extension, I really love it and find it very useful. But after update to FF 18.0 it stopped working: using "Batch download all images", I select a folder, press Start and receive message: "Error occured while downloading files. Maybe file name has forbidden characters, or download folder does not exist". Download folder exists (and if ever doesn't, it's just created), permissions are OK, no forbidden characters are there and it happens with any images set and any folder, including those ones that were working fine a few weeks ago. Please help fixing that!

This review is for a previous version of the add-on (1.2.11.1-signed.1-signed).