Works fine in 10.8

Unknown in 10.7


Supports iCloud

Secured by Gatekeeper

Supports retina graphics

Thunderbird icon

Available on the Mac App Store
Not available on the Mac App Store

Thunderbird is a free, open source, cross-platform e-mail and news client developed by the Mozilla Foundation. The project strategy is modeled after Mozilla Firefox, a project aimed at creating a web browser.

Version 3.1.20
Developer Open Source
Status Works fine

0 ratings

Version 3.1.20 (including Lightning 1.0b2 extension)
works in Mountain Lion

(gave up on TB recent releases after memory issues and always rolled back to 3.x)

Archived comments

No comments.3 comments

Lion (10.7) Comments

[ AppleGuy123]AppleGuy123Anonymous 24 Jun 2011 14:03

The App stalls a lot and sometimes doesn't appear when open.

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[ Hansi]HansiAnonymous 07 Jul 2011 18:42

Thunderbird 5 works fine on my macbook pro, no one crash

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[ Jim]JimAnonymous 05 Sep 2011 22:33

TB 6 confused some Lion networking issues. Its timing was inelegant as it came out with TB 6 about the same time as OS X 10.7.1. I did not stay on Lion long enough because of the networking issues to evaluate TB. There are several very long Apple support forum threads about networking. I could not say anything about TB but I do have a few choice words about Lion.

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