Add-ons of athor Wind Li and also Thunderbird Message Filter Import/Export Enhanced 1.0.3 contain a hyperlink to website “teesoft.info”, which can be seen in Add-Ons-Manager after click on the “More” Button. This domain does not or no longer exist, and users will be forwarded to other websites. None of these websites has a relation to add-ons or author, and several of them have a bad reputation, please also see some user ratings, for example here.
Someone with permissions should drop these hyperlinks.
Thanks for the report. I’ve notified the developer about this. I’ll edit the add-ons if I don’t hear back in a while.