Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Thunderbird V916

  • 1 nzaghachinzaghachi
  • 1 nwere nsogbu anwere nsogbu a
  • 1 view
  • Nzaghachi ikpeazụ nke Stans

more options

I'm running Mac OS Version 10.9.5 Your download page for Thunderbird indicates that it will function with "Mac: macOS 10.9 or later" But once downloaded it actually requires OS version 12. When I try to download an earlier version it always defaults to V916. That's frustrating!

So how can I actually download a version of Thunderbird that will indeed work with my system?

I'm running Mac OS Version 10.9.5 Your download page for Thunderbird indicates that it will function with "Mac: macOS 10.9 or later" But once downloaded it actually requires OS version 12. When I try to download an earlier version it always defaults to V916. That's frustrating! So how can I actually download a version of Thunderbird that will indeed work with my system?

All Replies (1)

more options