Enter your system password when prompted to authenticate the installation. Method 2: Using the Terminal (APT)
The version in the standard Ubuntu 20.04 repository may not always be the absolute latest release. To get more frequent updates, you can use the official Mozilla Team PPA. Add the PPA repository: sudo add-apt-repository ppa:mozillateam/ppa Use code with caution. Update your system: sudo apt update Use code with caution. Install or upgrade Thunderbird: sudo apt install thunderbird Use code with caution. Method 4: Manual Download from Official Website
For a faster installation, use the terminal to download the version maintained in the official Ubuntu repositories. Open the terminal (shortcut: Ctrl + Alt + T ). Update your package list: sudo apt update Use code with caution. Install Thunderbird: sudo apt install thunderbird Use code with caution. Method 3: Getting the Latest Version via PPA
If you need a specific version or want a standalone installation, you can download the .tar.bz2 archive directly from Thunderbird.net . the Linux 64-bit package from the official site. Extract the files in your terminal: tar -xvf thunderbird-*.tar.bz2 Use code with caution.