Can't add an add on to transfer wlive folders to thunderbird in w10

Thunderbird
#1

Get import/export tools into the thunderbird add on tab. When I click on it I get error msg asking for what app do I open it with??? How do I get from here to actually using it???

#2

If I understand correctly you are having issues with the ImportExportTools add-on? I think the best approach would be to contact the author asking for an update. Have you tried contacting the author?

#3

Thanks for the reply… I’m not having problems with the add on, when it ask me what to open the add on with, I don’t know what to use…

Bill

#4

Does https://support.mozilla.org/en-US/kb/thunderbird-add-ons-frequently-asked-questions?redirectlocale=en-US&redirectslug=add-ons-and-extensions-faq help?