Use Mozilla Thunderbird ESR on your Mac from ChatGPT or Claude
Customizable email client. With BCD, ChatGPT, Claude and other AI apps can open Mozilla Thunderbird ESR on your Mac, read its window and press buttons or type, from your phone or another computer.
Works on
- MacPartly
Through the app's window, with macOS accessibility: BCD reads what Mozilla Thunderbird ESR shows and presses buttons, types and picks menus. How far it goes depends on the app. macOS asks once to allow it.
- WindowsNo
BCD controls app windows only on a Mac.
- LinuxNo
BCD controls app windows only on a Mac.
About Mozilla Thunderbird ESR
- Version
- 153.7.0esr
- Installs (last 365 days)
- 427 · #1,299 among Homebrew apps
- Updates
- Updates itself
- Install
brew install --cask thunderbird@esr
Try asking
“Open Mozilla Thunderbird ESR and tell me what is on its screen”
“Install Mozilla Thunderbird ESR with Homebrew”
“Quit Mozilla Thunderbird ESR and update it to the latest version”
Questions
Can ChatGPT control Mozilla Thunderbird ESR?
On a Mac with BCD, yes, through the app's window: ChatGPT can open Mozilla Thunderbird ESR, read the buttons and text it shows, press buttons, type and pick menu items. How far that goes depends on how much of its window Mozilla Thunderbird ESR exposes to macOS accessibility.
Does this work on Windows?
No. BCD controls app windows only on a Mac. On Windows and Linux it works with files and commands.
Is it safe?
A new computer starts read-only. Controlling the screen and apps is turned on per computer, and macOS asks once before BCD may control apps.
Try it on your computer
BCD connects ChatGPT, Claude and other AI apps to your own Mac, Windows or Linux computer. One computer is free, with 20,000 tool calls a month and no card.
Program data from Homebrew, updated 2026-11-11. Installs are Homebrew's installs on request over the last 365 days.