Install & Sign In

Getting started with TabMail takes just a few minutes.

Requirements

Thunderbird v145 or later — If Thunderbird is not installed, the TabMail installer can download and install the official Mozilla Thunderbird build
A TabMail account — You’ll create one during setup

The easiest way to get started is using our installer, which will:

Install Mozilla Thunderbird if you don’t have it (official build downloaded from Mozilla)
Install the TabMail add-on directly into your Thunderbird profile
Set up the required native search helper

Download the installer from the download page
- macOS: Download the .pkg file (works on Intel & Apple Silicon)
- Windows: Download the .exe file (Windows 10 & 11)
Run the installer and follow the on-screen instructions
Sign in — A sign-in prompt will appear when you first open Thunderbird. Create an account or log in with your existing credentials.

If you already have Thunderbird installed or prefer manual control:

Download the add-on from the download page (switch to “Manual” tab)
- Download tabmail-latest.xpi
Install the add-on:
- Open Thunderbird
- Go to Tools → Add-ons and Themes (or press Ctrl/Cmd + Shift + A)
- Click the gear icon ⚙️ and select “Install Add-on From File…”
- Select the downloaded XPI file
Install the Full-Text Search Helper (required):
- macOS/Linux: Run curl -fsSL https://cdn.tabmail.ai/releases/native-fts/install.sh | bash in Terminal
- Windows: Run irm https://cdn.tabmail.ai/releases/native-fts/install.ps1 | iex in PowerShell
- Restart Thunderbird
Sign in — A sign-in prompt will appear. Create an account or log in with your existing credentials.

After installation, you should see:

To check your signin status:

Once signed in, TabMail will begin indexing your emails in the background. This runs locally and may take a few minutes depending on your inbox size.

If something isn’t working, check Troubleshooting or open a support ticket.

Last updated: March 30, 2026