Форум поддержки Thunderbird

can i go back to ver 102?? can't seem to find how to do this online importexporttool ng is grey out not avail. on new version i save dozens of emails from thunderbird to my computer for 'eternal' storage in pdf format & remove them from thunderbird but can't find an easy way to do this now if i try to save as they all go to a folder with .eml suffix which i don't want, if i try to print to pdf i have to name ea. file & if i try to save them to jpg i have to say 'ok' to ea. file i tried to do 119 files this morning & gave up, hate upgrades that change such important things