Rated 5 out of 5 stars

Perfect! And can you add ability to save all open pages not in one archive but every page in one maff-archive - for example 27 tabs and every tab in one archive = 27 maff's ?!!

This review is for a previous version of the add-on (2.0.7). 

Thanks for the suggestion. I think that the "SaveAll!" add-on might already help in this case, though an integrated version of the same feature will also be considered for a future version of the Mozilla Archive Format add-on.