diff --git a/host/downloadjob.h b/host/downloadjob.h
--- a/host/downloadjob.h
+++ b/host/downloadjob.h
@@ -63,6 +63,8 @@
 private:
     void updateDescription();
 
+    void interruptDownload();
+
     int m_id = -1;
 
     QUrl m_url;
@@ -77,4 +79,7 @@
     QDateTime m_startTime;
     QDateTime m_endTime;
 
+    QString m_state;
+    QString m_error;
+
 };
diff --git a/host/downloadjob.cpp b/host/downloadjob.cpp
--- a/host/downloadjob.cpp
+++ b/host/downloadjob.cpp
@@ -25,6 +25,7 @@
 #include "settings.h"
 
 #include <QJsonObject>
+#include <QTimer>
 
 #include <KLocalizedString>
 
@@ -146,70 +147,20 @@
         emitSpeed(speed);
     }
 
-    // TODO use the estimatedEndTime to calculate transfer speed
+    it = payload.constFind(QStringLiteral("error"));
+    if (it != payload.constEnd()) {
+        m_error = it->toString();
+    }
 
     it = payload.constFind(QStringLiteral("state"));
     if (it != end) {
-        const QString status = it->toString();
-        if (status == QLatin1String("in_progress")) {
-
-        } else if (status == QLatin1String("interrupted")) {
-
-            const QString &error = payload.value(QStringLiteral("error")).toString();
+        m_state = it->toString();
 
-            if (error == QLatin1String("USER_CANCELED")
-                || error == QLatin1String("USER_SHUTDOWN")) {
-                setError(KIO::ERR_USER_CANCELED); // will keep Notification applet from showing a "finished"/error message
-                emitResult();
-                return;
-            }
-
-            // value is a QVariant so we can be lazy and support both KIO errors and custom test
-            // if QVariant is an int: use that as KIO error
-            // if QVariant is a QString: set UserError and message
-            static const QHash<QString, QString> errors {
-                // for a list of these error codes *and their meaning* instead of looking at browser
-                // extension docs, check out Chromium's source code: download_interrupt_reason_values.h
-                {QStringLiteral("FILE_ACCESS_DENIED"), i18n("Access denied.")}, // KIO::ERR_ACCESS_DENIED
-                {QStringLiteral("FILE_NO_SPACE"), i18n("Insufficient free space.")}, // KIO::ERR_DISK_FULL
-                {QStringLiteral("FILE_NAME_TOO_LONG"), i18n("The file name you have chosen is too long.")},
-                {QStringLiteral("FILE_TOO_LARGE"), i18n("The file is too large to be downloaded.")},
-                // haha
-                {QStringLiteral("FILE_VIRUS_INFECTED"), i18n("The file possibly contains malicious contents.")},
-                {QStringLiteral("FILE_TRANSIENT_ERROR"), i18n("A temporary error has occurred. Please try again later.")},
-
-                {QStringLiteral("NETWORK_FAILED"), i18n("A network error has occurred.")},
-                {QStringLiteral("NETWORK_TIMEOUT"), i18n("The network operation timed out.")}, // TODO something less geeky
-                {QStringLiteral("NETWORK_DISCONNECTED"), i18n("The network connection has been lost.")},
-                {QStringLiteral("NETWORK_SERVER_DOWN"), i18n("The server is no longer reachable.")},
-
-                {QStringLiteral("SERVER_FAILED"), i18n("A server error has occurred.")},
-                // chromium code says "internal use" and this is really not something the user should see
-                // SERVER_NO_RANGE"
-                // SERVER_PRECONDITION
-                {QStringLiteral("SERVER_BAD_CONTENT"), i18n("The server does not have the requested data.")},
-
-                {QStringLiteral("CRASH"), i18n("The browser application closed unexpectedly.")}
-            };
-
-
-            const QString &errorValue = errors.value(error);
-            if (errorValue.isEmpty()) { // unknown error
-                setError(KIO::ERR_UNKNOWN);
-                setErrorText(i18n("An unknown error occurred while downloading."));
-                emitResult();
-                return;
-            }
-
-            // KIO::Error doesn't have a UserDefined one, let's just use magic numbers then
-            // TODO at least set the KIO::Errors that we do have
-            setError(1000);
-            setErrorText(errorValue);
-
-            emitResult();
-
-            return;
-        } else if (status == QLatin1String("complete")) {
+        if (m_state == QLatin1String("interrupted")) {
+            // in Firefox we get the error after we got the state change to "interrupted"
+            // so we defer finishing the download a bit where we might have the error
+            QTimer::singleShot(1, this, &DownloadJob::interruptDownload);
+        } else if (m_state == QLatin1String("complete")) {
             emitResult();
             return;
         }
@@ -220,6 +171,61 @@
     }
 }
 
+void DownloadJob::interruptDownload()
+{
+    // just to be sure
+    if (m_state != QLatin1String("interrupted")) {
+        qWarning() << "got told to interrupt a download that isn't interrupted anymore";
+        return;
+    }
+
+    if (m_error == QLatin1String("USER_CANCELED")
+        || m_error == QLatin1String("USER_SHUTDOWN")) {
+        setError(KIO::ERR_USER_CANCELED); // will keep Notification applet from showing a "finished"/error message
+        emitResult();
+        return;
+    }
+
+    static const QHash<QString, QString> errors {
+        // for a list of these error codes *and their meaning* instead of looking at browser
+        // extension docs, check out Chromium's source code: download_interrupt_reason_values.h
+        {QStringLiteral("FILE_ACCESS_DENIED"), i18n("Access denied.")}, // KIO::ERR_ACCESS_DENIED
+        {QStringLiteral("FILE_NO_SPACE"), i18n("Insufficient free space.")}, // KIO::ERR_DISK_FULL
+        {QStringLiteral("FILE_NAME_TOO_LONG"), i18n("The file name you have chosen is too long.")},
+        {QStringLiteral("FILE_TOO_LARGE"), i18n("The file is too large to be downloaded.")},
+        {QStringLiteral("FILE_VIRUS_INFECTED"), i18n("The file possibly contains malicious contents.")},
+        {QStringLiteral("FILE_TRANSIENT_ERROR"), i18n("A temporary error has occurred. Please try again later.")},
+
+        {QStringLiteral("NETWORK_FAILED"), i18n("A network error has occurred.")},
+        {QStringLiteral("NETWORK_TIMEOUT"), i18n("The network operation timed out.")}, // TODO something less geeky
+        {QStringLiteral("NETWORK_DISCONNECTED"), i18n("The network connection has been lost.")},
+        {QStringLiteral("NETWORK_SERVER_DOWN"), i18n("The server is no longer reachable.")},
+
+        {QStringLiteral("SERVER_FAILED"), i18n("A server error has occurred.")},
+        // chromium code says "internal use" and this is really not something the user should see
+        // SERVER_NO_RANGE
+        // SERVER_PRECONDITION
+        {QStringLiteral("SERVER_BAD_CONTENT"), i18n("The server does not have the requested data.")},
+
+        {QStringLiteral("CRASH"), i18n("The browser application closed unexpectedly.")}
+    };
+
+    const QString &errorValue = errors.value(m_error);
+    if (errorValue.isEmpty()) { // unknown error
+        setError(KIO::ERR_UNKNOWN);
+        setErrorText(i18n("An unknown error occurred while downloading."));
+        emitResult();
+        return;
+    }
+
+    // KIO::Error doesn't have a UserDefined one, let's just use magic numbers then
+    // TODO at least set the KIO::Errors that we do have
+    setError(1000);
+    setErrorText(errorValue);
+
+    emitResult();
+}
+
 void DownloadJob::updateDescription()
 {
     description(this, i18nc("Job heading, like 'Copying'", "Downloading"),