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由 Viktor Vogel 发表于 Sept. 29, 2020 · 永久链接

Signature Switch is back! Achim has just released the first public beta version that works like a charm with the latest Thunderbird version. What a great little helper, really missed it. Get it from the project page in the menu link "Development Builds". Download the xpi file and drag&drop it into the Add-Ons page in Thunderbird. That's all!