diff --git a/docs/kcontrol5/proxy/index.docbook b/docs/kcontrol5/proxy/index.docbook
--- a/docs/kcontrol5/proxy/index.docbook
+++ b/docs/kcontrol5/proxy/index.docbook
@@ -94,7 +94,7 @@
 
 <note><para>If you have a problem using this setup, please consult the
 <acronym>FAQ</acronym> section at <ulink
-url="http://www.konqueror.org">http://www.konqueror.org</ulink> for
+url="https://www.konqueror.org">https://www.konqueror.org</ulink> for
 more information.</para></note>
 </listitem>
 </varlistentry>
diff --git a/docs/kcookiejar5/man-kcookiejar5.8.docbook b/docs/kcookiejar5/man-kcookiejar5.8.docbook
--- a/docs/kcookiejar5/man-kcookiejar5.8.docbook
+++ b/docs/kcookiejar5/man-kcookiejar5.8.docbook
@@ -140,7 +140,7 @@
 
 <refsect1>
 <title>Bugs</title>
-<para>Please use <ulink url="http://bugs.kde.org">KDE's bugtracker</ulink> to report bugs.</para>
+<para>Please use <ulink url="https://bugs.kde.org">KDE's bugtracker</ulink> to report bugs.</para>
 </refsect1>
 
 </refentry>
diff --git a/docs/kioslave5/data/index.docbook b/docs/kioslave5/data/index.docbook
--- a/docs/kioslave5/data/index.docbook
+++ b/docs/kioslave5/data/index.docbook
@@ -47,7 +47,7 @@
 <literal>Gr??e aus Schl?gl</literal>
 </para>
 
-<para><ulink url="http://www.ietf.org/rfc/rfc2397.txt">IETF
+<para><ulink url="https://www.ietf.org/rfc/rfc2397.txt">IETF
 RFC2397</ulink> provides more information.</para>
 
 </article>
diff --git a/docs/kioslave5/help/documentationnotfound/index.docbook b/docs/kioslave5/help/documentationnotfound/index.docbook
--- a/docs/kioslave5/help/documentationnotfound/index.docbook
+++ b/docs/kioslave5/help/documentationnotfound/index.docbook
@@ -31,7 +31,7 @@
 <title>How to solve this issue</title>
 
 <para>If the application is &kde; software, start by searching the <ulink
-url="http://docs.kde.org/">KDE Documentation site</ulink> for the requested
+url="https://docs.kde.org/">KDE Documentation site</ulink> for the requested
 documentation. If you find the documentation on that site, your distribution
 might ship a separate package for documentation (&eg;  called plasma-doc for
 documentation related to &plasma;). Please use the package manager of your
@@ -45,20 +45,20 @@
 <para>If you have done that, but still get this page displayed instead of the
 application handbook, you probably found a bug in the help
 system.  In this case, please report this on the <ulink
-url="http://bugs.kde.org/">KDE Bug Tracker</ulink> under the KIO product.
+url="https://bugs.kde.org/">KDE Bug Tracker</ulink> under the KIO product.
 </para>
 
 <para>If you do not find any documentation on the <ulink
-url="http://docs.kde.org/">KDE Documentation site</ulink>, the
+url="https://docs.kde.org/">KDE Documentation site</ulink>, the
 application may not have offline documentation.  Please report this on
-the <ulink url="http://bugs.kde.org/">KDE Bug Tracker</ulink> under the
+the <ulink url="https://bugs.kde.org/">KDE Bug Tracker</ulink> under the
 product for the application.
 </para>
 
 <para>In case the application does not have offline documentation, you should
 use the online resources <ulink
-url="http://userbase.kde.org/">UserBase Documentation</ulink> and
-<ulink url="http://forum.kde.org/">KDE Community Forums</ulink> to get
+url="https://userbase.kde.org/">UserBase Documentation</ulink> and
+<ulink url="https://forum.kde.org/">KDE Community Forums</ulink> to get
 help.
 </para>
 
diff --git a/docs/kioslave5/mailto/index.docbook b/docs/kioslave5/mailto/index.docbook
--- a/docs/kioslave5/mailto/index.docbook
+++ b/docs/kioslave5/mailto/index.docbook
@@ -22,7 +22,7 @@
 </articleinfo>
 <para>
 The kioslave mailto is responsible for launching the mail composer of your
-choice when you open a &URL; in the mailto scheme (<ulink url="http://tools.ietf.org/html/rfc6068">RFC6068</ulink>).
+choice when you open a &URL; in the mailto scheme (<ulink url="https://tools.ietf.org/html/rfc6068">RFC6068</ulink>).
 </para>
 
 <variablelist>
diff --git a/src/core/job_error.cpp b/src/core/job_error.cpp
--- a/src/core/job_error.cpp
+++ b/src/core/job_error.cpp
@@ -49,7 +49,7 @@
         result = i18n("Could not start process %1.",  errorText);
         break;
     case  KIO::ERR_INTERNAL:
-        result = i18n("Internal Error\nPlease send a full bug report at http://bugs.kde.org\n%1",  errorText);
+        result = i18n("Internal Error\nPlease send a full bug report at https://bugs.kde.org\n%1",  errorText);
         break;
     case  KIO::ERR_MALFORMED_URL:
         result = i18n("Malformed URL %1.",  errorText);
@@ -373,7 +373,7 @@
                               "high quality bug report. If the software is provided by a third party, "
                               "please contact them directly. Otherwise, first look to see if "
                               "the same bug has been submitted by someone else by searching at the "
-                              "<a href=\"http://bugs.kde.org/\">KDE bug reporting website</a>. If not, take "
+                              "<a href=\"https://bugs.kde.org/\">KDE bug reporting website</a>. If not, take "
                               "note of the details given above, and include them in your bug report, along "
                               "with as many other details as you think might help.");
     QString cNetwork = i18n("There may have been a problem with your network "
@@ -454,8 +454,8 @@
                        "the server may be incompatible.",  protocol);
         solutions << i18n("You may perform a search on the Internet for a KDE "
                           "program (called a kioslave or ioslave) which supports this protocol. "
-                          "Places to search include <a href=\"http://kde-apps.org/\">"
-                          "http://kde-apps.org/</a> and <a href=\"http://freshmeat.net/\">"
+                          "Places to search include <a href=\"https://kde-apps.org/\">"
+                          "https://kde-apps.org/</a> and <a href=\"http://freshmeat.net/\">"
                           "http://freshmeat.net/</a>.")
                   << sUpdate << sSysadmin;
         break;
@@ -906,8 +906,8 @@
                            "authentication details, the authentication failed because the "
                            "method that the server is using is not supported by the KDE "
                            "program implementing the protocol %1.",  protocol);
-        solutions << i18n("Please file a bug at <a href=\"http://bugs.kde.org/\">"
-                          "http://bugs.kde.org/</a> to inform the KDE team of the unsupported "
+        solutions << i18n("Please file a bug at <a href=\"https://bugs.kde.org/\">"
+                          "https://bugs.kde.org/</a> to inform the KDE team of the unsupported "
                           "authentication method.") << sSysadmin;
         break;
 
diff --git a/src/kcms/kio/kproxydlg.ui b/src/kcms/kio/kproxydlg.ui
--- a/src/kcms/kio/kproxydlg.ui
+++ b/src/kcms/kio/kproxydlg.ui
@@ -42,7 +42,7 @@
       <string>&lt;qt&gt;
 Automatically detect and configure the proxy settings.&lt;p&gt;
 Automatic detection is performed using the &lt;b&gt;Web Proxy Auto-Discovery Protocol (WPAD)&lt;/b&gt;.&lt;p&gt;
-&lt;b&gt;NOTE:&lt;/b&gt; This option might not work properly or not work at all in some UNIX/Linux distributions. If you encounter a problem when using this option, please check the FAQ section at http://konqueror.kde.org.
+&lt;b&gt;NOTE:&lt;/b&gt; This option might not work properly or not work at all in some UNIX/Linux distributions. If you encounter a problem when using this option, please check the FAQ section at https://konqueror.org.
 &lt;/qt&gt;</string>
      </property>
      <property name="text">
diff --git a/src/widgets/kautomount.cpp b/src/widgets/kautomount.cpp
--- a/src/widgets/kautomount.cpp
+++ b/src/widgets/kautomount.cpp
@@ -82,7 +82,7 @@
 
         if (!mp) {
             qCWarning(KIO_WIDGETS) << m_strDevice << "was correctly mounted, but findByDevice() didn't find it."
-                       << "This looks like a bug, please report it on http://bugs.kde.org, together with your /etc/fstab and /etc/mtab lines for this device";
+                       << "This looks like a bug, please report it on https://bugs.kde.org, together with your /etc/fstab and /etc/mtab lines for this device";
         } else {
             const QUrl url = QUrl::fromLocalFile(mp->mountPoint());
             //qDebug() << "KAutoMount: m_strDevice=" << m_strDevice << " -> mountpoint=" << mountpoint;