任何引导后首次运行 Tbird 都没有问题。然后，如果我右键单击 Tbird 图标，新的下拉菜单将永久显示。（消除图标栏的顶部）如果单击下拉菜单，则不会产生任何效果。这也会禁用 AltTab。如果 sysmon 用于停止 Tbird，那么它不会从图标或应用程序重新启动。
如果从终端启动，则输出如下：
$ thunderbird
[calBackendLoader] Using Thunderbird's libical backend
console.debug: "Successfully loaded OpenPGP library librnp.so version 0.14+git20210121.7c8492b4.MZLA from /usr/lib/thunderbird/librnp.so"
Extension error: Error while loading 'jar:file:///usr/lib/thunderbird/extensions/messagingmenu@mozilla.com.xpi!/manifest.json' (NS_ERROR_FILE_NOT_FOUND) resource://gre/modules/Extension.jsm:570 :: readJSON/</<@resource://gre/modules/Extension.jsm:570:20
onStopRequest@resource://gre/modules/NetUtil.jsm:128:18
Extension error: Error while loading 'jar:file:///usr/lib/thunderbird/omni.ja!/chrome/messenger/search-extensions/twitter/manifest.json' (NS_ERROR_FILE_NOT_FOUND) resource://gre/modules/Extension.jsm:570 :: readJSON/</<@resource://gre/modules/Extension.jsm:570:20
onStopRequest@resource://gre/modules/NetUtil.jsm:128:18
console.debug: "Found 0 public keys and 0 secret keys (0 protected, 0 unprotected)"
console.debug: "Successfully loaded optional OpenPGP library libgpgme.so.11 from system's standard library locations"
console.debug: "gpgme version: 1.14.0-unknown"
console.debug: "Trying …