Those who seek shall find. https://donate.mozilla.org/en-US/ Got the link from the Thunderbird-site where https://give.thunderbird.net/en-US/ redirects to https://give.thunderbird.net/en-US

So yeah the link is out there but you really have to look for it. Which is actually s.th. quite nice. Imagine they would go about nagging people. You might say one of 2 things: a) So in their face, others are probably donating what do they need me for b) So in my face, that is indescent, I do not donate. Whatever the choice happy donating; I already did.;)