Unable to connect to native messaging about keepassxc-mail HOT 8 CLOSED

private-bin thunderbird # wtf?

whitelist /media/joni/Data/Sonstiges/Thunderbird # the profile
ignore disable-mnt

machine-id # we don't need audio or whatever

private-bin date, tr, sed, bash # for some startup script

# KeePassXC Mail
private-bin keepassxc-proxy
whitelist ${HOME}/.mozilla
read-only ${HOME}/.mozilla

$ cat ~/.mozilla/native-messaging-hosts/de.kkapsner.keepassxc_mail.json
{
    "allowed_extensions": [
        "[email protected]"
    ],
    "description": "KeePassXC integration with native messaging support",
    "name": "de.kkapsner.keepassxc_mail",
    "path": "/usr/local/bin/keepassxc-proxy",
    "type": "stdio"
}

$ cat ~/.mozilla/native-messaging-hosts/org.keepassxc.keepassxc_browser.json 
{
    "allowed_extensions": [
        "[email protected]"
    ],
    "description": "KeePassXC integration with native messaging support",
    "name": "org.keepassxc.keepassxc_browser",
    "path": "/usr/local/bin/keepassxc-proxy",
    "type": "stdio"
}

WebExtensions: KeePassXC-Mail: unable to get smtpEnterPasswordPromptTitle from bundle compose 2 [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to get imapEnterPasswordPromptTitle from bundle imap [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to get pop3EnterPasswordPromptTitle from bundle local 2 [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to get loginDialog.label from bundle wcap 2 [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to get PromptUsernameAndPassword2 from bundle commonDialog 2 [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to get PromptPassword2 from bundle commonDialog [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to get CertPassPromptDefault from bundle pipnss [implementation.js:34](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
WebExtensions: KeePassXC-Mail: unable to register support for CardBook 
Exception { name: "NS_ERROR_FILE_NOT_FOUND", message: "", result: 2152857618, filename: "jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js", lineNumber: 742, columnNumber: 0, data: null, stack: "@jar:file:///tmp/asdf/extensions/[email protected]!/experiment
implementation.js:742:45\nasyncLoadModule/module.asyncLoaded<@resource://gre/modules/ExtensionCommon.jsm:1677:14\n", location: XPCWrappedNative_NoHelper }
[implemfentation.js:788](jar:file:///tmp/asdf/extensions/[email protected]!/experiment/implementation.js)
No chrome package registered for chrome://cardbook/content/cardbookRepository.js
ExtensionError: No such native application de.kkapsner.keepassxc_mail [ExtensionUtils.jsm:58:5](resource://gre/modules/ExtensionUtils.jsm)
this.ports.get(...) is undefined [ExtensionParent.jsm:366](resource://gre/modules/ExtensionParent.jsm)
ExtensionError: No such native application org.keepassxc.keepassxc_mail [ExtensionUtils.jsm:58:5](resource://gre/modules/ExtensionUtils.jsm)
this.ports.get(...) is undefined [ExtensionParent.jsm:366](resource://gre/modules/ExtensionParent.jsm)
ExtensionError: No such native application org.keepassxc.keepassxc_browser [ExtensionUtils.jsm:58:5](resource://gre/modules/ExtensionUtils.jsm)
this.ports.get(...) is undefined [ExtensionParent.jsm:366](resource://gre/modules/ExtensionParent.jsm)