on quantum 65.0. worked great for a long time, and now seems to support having >10 tabs selected per output file.

however, for the past couple days every time i click on the add-on on launch, it displays the "pressing your epub" progress bar, "finishes", but produces no output file obviously (as nothing has been selected).

will try to dick around with the config files until its updated.

edit: remove the add-on. quit firefox. launch ff. re-download epubpress. should work now.