- click the 'new message' button - not click the alt key to display menu bar. If that doesn't work, try pressing f10 - once the menu bar appears, click view>toolbars and tick the composition toolbar

Hello there We have read the question s We try to help you.

您好，我们已经阅读了问题，我们尝试为您提供帮助。

https://support.mozilla.org/zh-CN/kb/cannot-send-messages

Greetings Firefox volunteer

Hello there

- 单击“新消息”按钮 - 不要单击 ALT 键以显示菜单栏。如果这不起作用，请尝试按 f10 - 菜单栏出现后，单击视图>工具栏并勾选合成工具栏

Greetings Firefox volunteer

I meant to say to click the alt key. I was writing 'now click the alt key' but my typing was an error, saying 'not click the alt key.' Let me know if it works.

Hello there

单击“新消息”按钮 - 单击 ALT 键以显示菜单栏。如果这不起作用，请尝试按 F10 – 菜单栏出现后，单击视图工具栏>并勾选组合工具栏

Greetings Firefox volunteer.