Mozilla Thunderbird Daily
MZLA Technologies Corporation · A macOS build from Thunderbird’s Daily channel, where development and testing begin; it is expected to be the least stable channel.
Mozilla Thunderbird Daily is a Communication app for Mac.
About
Mozilla Thunderbird Daily is the macOS build of Thunderbird’s Daily channel. Thunderbird is presented as a desktop app for email, calendar, and contacts. Daily is intended for development and testing, where new features are developed; it is not the regular Release channel.
- Provides the Thunderbird desktop email, calendar, and contacts app.
- Belongs to the Daily channel, where development and testing begin.
- The Daily channel is expected to be the least stable Thunderbird desktop channel.
- The download page notes that Daily may not work with all add-ons and recommends regularly backing up important data.
Install this cask with brew install --cask thunderbird@daily. Homebrew installs Thunderbird Daily. in /. This package is specifically the Daily build, not Thunderbird Release, Beta, or Extended Support Release. The supplied cask targets macOS. For other Thunderbird channels and platform downloads, consult the official channel page.
New What’s new in 160.0a1 (2026-10-14-10-24-10) OpenNavo editorial · Translated
No separate changelog for this exact Daily build was retrieved; the official archive and checksum file confirm its identity.
Install and uninstall
Homebrew installs the app in your Applications folder.
Install without Homebrew
Download the same file Homebrew uses: ftp.mozilla.org/pub/thunderbird/nightly/2026/10/2026-10-14-10-24-10-comm-central/thunderbird-160.0a1.en-US.mac.dmg
SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address
$ brew uninstall --cask \thunderbird@dailyA regular uninstall removes the app and keeps its settings and caches.
$ brew uninstall --zap --cask \thunderbird@daily--zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left.See which files are removed
Facts and sources
- Version 160.0a1
- Recorded by Homebrew on Oct 14
Questions
Is Mozilla Thunderbird Daily safe?
Mozilla Thunderbird Daily is in Homebrew’s official catalog and has not been disabled. Since September 2026, Homebrew disables apps that fail macOS Gatekeeper checks. When installing, Homebrew checks the download from ftp.mozilla.org against its SHA-256 checksum. It was installed 5 times through Homebrew in the last 30 days.
How do I completely uninstall Mozilla Thunderbird Daily on a Mac?
Run brew uninstall --cask thunderbird@daily. It quits the app. To delete its settings and caches as well, run brew uninstall --zap --cask thunderbird@daily. That also deletes 7 files and folders, including ~/.
Does Mozilla Thunderbird Daily run on Apple silicon (M1 and later) Macs?
Homebrew installs it on both Apple silicon and Intel Macs, from the same download.
What is the latest version of Mozilla Thunderbird Daily?
The latest version is 160.0a1, added to Homebrew on Oct 14. Mozilla Thunderbird Daily updates itself; to update it with Homebrew, run brew upgrade --cask --greedy thunderbird@daily.