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Mozilla Thunderbird ESR

Thunderbird · Thunderbird’s Extended Support Release email client for macOS, with calendar and contacts features and a monthly stability and security-fix cadence.

CaskCommunicationAuto-updatesApple silicon · Intel
Homepage
From homebrew/cask
30-day installs32#1125 in App
1-year installs425Last 365 days
Latest version140.17.0esrSep 30 · Sep 30
Download size138MBarm64 / x86_64 · dmg
Release cadenceEvery 2 weeks2 releases in 30 days

Mozilla Thunderbird ESR is a Communication app for Mac.

About

Mozilla Thunderbird ESR is the macOS desktop edition of Thunderbird’s Extended Support Release channel. Thunderbird is an email client that also includes calendar and contacts features. The ESR channel is intended for users who want new features on an annual basis, alongside monthly stability and security fixes; this distinguishes it from Thunderbird’s regular Release channel, which receives new features and bug fixes monthly.

  • Install this Homebrew cask with brew install --cask thunderbird@esr. It installs Thunderbird.app in /Applications.
  • The cask selects the US English build by default. Its available language choices include Simplified Chinese, Japanese, Spanish, Brazilian Portuguese, and Russian, among others.
  • Thunderbird ESR is a graphical desktop application, not a command-line tool.
  • The ESR download page notes that some add-ons may not work with all releases.

The cask conflicts with the separate thunderbird cask, so these two casks cannot be installed together. For platform details and release-channel information, see the official ESR download page. The Homebrew cask definition lists its language selections and installation details.

New What’s new in 140.17.0esr OpenNavo editorial

  • ChangesStops bundling the RNP command-line utilities.
See all 53 releases

Install and uninstall

Homebrew installs the app in your Applications folder.

Install without Homebrew

Download the same file Homebrew uses: download-installer.cdn.mozilla.net/pub/thunderbird/releases/140.17.0esr/mac/en-US/Thunderbird%20140.17.0esr.dmg

SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address

Uninstall command
$ brew uninstall --cask \      thunderbird@esr

A regular uninstall removes the app and keeps its settings and caches.

Deep clean (optional)
$ brew uninstall --zap --cask \      thunderbird@esr

--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 140.17.0esr
Recorded by Homebrew on Sep 30

Questions

How do I update Mozilla Thunderbird ESR?

Mozilla Thunderbird ESR updates itself. brew upgrade skips it by default; run brew upgrade --cask --greedy thunderbird@esr when you need to.

Can I install Mozilla Thunderbird ESR without Homebrew?

Yes, download it from the official website, www.thunderbird.net/en-US/download/esr.