diff --git a/src/plugins/help/helpviewer.h b/src/plugins/help/helpviewer.h
index 4e0a7f7554b..3753300d2fb 100644
--- a/src/plugins/help/helpviewer.h
+++ b/src/plugins/help/helpviewer.h
@@ -51,7 +51,6 @@ public:
     explicit HelpViewer(QWidget *parent = nullptr);
     ~HelpViewer() override;
 
-    virtual QFont viewerFont() const = 0;
     virtual void setViewerFont(const QFont &font) = 0;
 
     virtual void setScale(qreal scale) = 0;
diff --git a/src/plugins/help/litehtmlhelpviewer.cpp b/src/plugins/help/litehtmlhelpviewer.cpp
index 30db13f5f26..44fda661076 100644
--- a/src/plugins/help/litehtmlhelpviewer.cpp
+++ b/src/plugins/help/litehtmlhelpviewer.cpp
@@ -89,11 +89,6 @@ LiteHtmlHelpViewer::LiteHtmlHelpViewer(QWidget *parent)
 
 LiteHtmlHelpViewer::~LiteHtmlHelpViewer() = default;
 
-QFont LiteHtmlHelpViewer::viewerFont() const
-{
-    return m_viewer->defaultFont();
-}
-
 void LiteHtmlHelpViewer::setViewerFont(const QFont &newFont)
 {
     m_viewer->setDefaultFont(newFont);
diff --git a/src/plugins/help/litehtmlhelpviewer.h b/src/plugins/help/litehtmlhelpviewer.h
index 99b1c723fe2..b287f215600 100644
--- a/src/plugins/help/litehtmlhelpviewer.h
+++ b/src/plugins/help/litehtmlhelpviewer.h
@@ -45,7 +45,6 @@ public:
     explicit LiteHtmlHelpViewer(QWidget *parent = nullptr);
     ~LiteHtmlHelpViewer() override;
 
-    QFont viewerFont() const override;
     void setViewerFont(const QFont &font) override;
 
     void setScale(qreal scale) override;
diff --git a/src/plugins/help/macwebkithelpviewer.h b/src/plugins/help/macwebkithelpviewer.h
index 98955cb070a..f6b2d9424d3 100644
--- a/src/plugins/help/macwebkithelpviewer.h
+++ b/src/plugins/help/macwebkithelpviewer.h
@@ -70,7 +70,6 @@ public:
     explicit MacWebKitHelpViewer(QWidget *parent = nullptr);
     ~MacWebKitHelpViewer() override;
 
-    QFont viewerFont() const override;
     void setViewerFont(const QFont &font) override;
 
     void setScale(qreal scale) override;
diff --git a/src/plugins/help/macwebkithelpviewer.mm b/src/plugins/help/macwebkithelpviewer.mm
index 05433328137..1cb2aa2596d 100644
--- a/src/plugins/help/macwebkithelpviewer.mm
+++ b/src/plugins/help/macwebkithelpviewer.mm
@@ -534,16 +534,6 @@ MacWebKitHelpViewer::~MacWebKitHelpViewer()
 
 }
 
-QFont MacWebKitHelpViewer::viewerFont() const
-{
-    @autoreleasepool {
-        WebPreferences *preferences = m_widget->webView().preferences;
-        QString family = QString::fromNSString([preferences standardFontFamily]);
-        int size = [preferences defaultFontSize];
-        return QFont(family, size);
-    }
-}
-
 void MacWebKitHelpViewer::setViewerFont(const QFont &font)
 {
     @autoreleasepool {
diff --git a/src/plugins/help/textbrowserhelpviewer.cpp b/src/plugins/help/textbrowserhelpviewer.cpp
index e5e6db26b99..e5188c1d25b 100644
--- a/src/plugins/help/textbrowserhelpviewer.cpp
+++ b/src/plugins/help/textbrowserhelpviewer.cpp
@@ -75,11 +75,6 @@ TextBrowserHelpViewer::TextBrowserHelpViewer(QWidget *parent)
 
 TextBrowserHelpViewer::~TextBrowserHelpViewer() = default;
 
-QFont TextBrowserHelpViewer::viewerFont() const
-{
-    return m_textBrowser->font();
-}
-
 void TextBrowserHelpViewer::setViewerFont(const QFont &newFont)
 {
     setFontAndScale(newFont, LocalHelpManager::fontZoom() / 100.0);
diff --git a/src/plugins/help/textbrowserhelpviewer.h b/src/plugins/help/textbrowserhelpviewer.h
index 60336635d19..ecdf3effbcf 100644
--- a/src/plugins/help/textbrowserhelpviewer.h
+++ b/src/plugins/help/textbrowserhelpviewer.h
@@ -43,7 +43,6 @@ public:
     explicit TextBrowserHelpViewer(QWidget *parent = nullptr);
     ~TextBrowserHelpViewer() override;
 
-    QFont viewerFont() const override;
     void setViewerFont(const QFont &font) override;
 
     void setScale(qreal scale) override;
diff --git a/src/plugins/help/webenginehelpviewer.cpp b/src/plugins/help/webenginehelpviewer.cpp
index 3766e551620..32c780113c3 100644
--- a/src/plugins/help/webenginehelpviewer.cpp
+++ b/src/plugins/help/webenginehelpviewer.cpp
@@ -159,13 +159,6 @@ WebEngineHelpViewer::WebEngineHelpViewer(QWidget *parent) :
 #endif
 }
 
-QFont WebEngineHelpViewer::viewerFont() const
-{
-    QWebEngineSettings *webSettings = m_widget->settings();
-    return QFont(webSettings->fontFamily(QWebEngineSettings::StandardFont),
-                 webSettings->fontSize(QWebEngineSettings::DefaultFontSize));
-}
-
 void WebEngineHelpViewer::setViewerFont(const QFont &font)
 {
     QWebEngineSettings *webSettings = m_widget->settings();
diff --git a/src/plugins/help/webenginehelpviewer.h b/src/plugins/help/webenginehelpviewer.h
index 1869ac67027..aafb9a08c77 100644
--- a/src/plugins/help/webenginehelpviewer.h
+++ b/src/plugins/help/webenginehelpviewer.h
@@ -82,7 +82,6 @@ class WebEngineHelpViewer : public HelpViewer
 public:
     explicit WebEngineHelpViewer(QWidget *parent = nullptr);
 
-    QFont viewerFont() const override;
     void setViewerFont(const QFont &font) override;
     void setScale(qreal scale) override;
     QString title() const override;