If you installed the beta program into its own program directory (choice 1 above) and you used a <a href="https://support.mozilla.org/en-US/kb/dedicated-profile-thunderbird-installation">dedicated profile per Thunderbird</a>, then start the release version of Thunderbird and it should use your release version profile data. If you no longer want to use the beta version, and do not need any of the beta data (address books, local folders, pop folders, etc), and wish to remove the beta data and beta program from your system:
如果您将测试版安装到了单独的程序目录中（上面的第一种方式），并且<a href="https://support.mozilla.org/en-US/kb/dedicated-profile-thunderbird-installation">为不同版本的 Thunderbird 使用单独的配置文件</a>，那么正式版使用的就依然是正式版的配置文件数据。如果您不想再使用测试版，且不需要保留测试版数据（包括通讯录、本地文件夹、POP 文件夹等），想要从系统中移除测试版及其数据时：