diff --git a/src/lib/app/commandlineoptions.cpp b/src/lib/app/commandlineoptions.cpp
index 061b8cf3b..66f0417cc 100644
--- a/src/lib/app/commandlineoptions.cpp
+++ b/src/lib/app/commandlineoptions.cpp
@@ -45,6 +45,7 @@ void CommandLineOptions::showHelp()
                        "\n"
                        "    -p=PROFILE or --profile=PROFILE     start with specified profile \n"
                        "    -ne or --no-extensions              start without extensions\n"
+                       "    -po or --portable                   start in portable mode\n"
                        "\n"
                        " Options to control running QupZilla:\n"
                        "    -nt or --new-tab                    open new tab\n"
@@ -157,6 +158,12 @@ void CommandLineOptions::parseActions()
             m_actions.append(pair);
         }
 
+        if (arg.startsWith(QLatin1String("-po")) || arg.startsWith(QLatin1String("--portable"))) {
+            ActionPair pair;
+            pair.action = Qz::CL_StartPortable;
+            m_actions.append(pair);
+        }
+
         if (arg.startsWith(QLatin1String("-fs")) || arg.startsWith(QLatin1String("--fullscreen"))) {
             ActionPair pair;
             pair.action = Qz::CL_ToggleFullScreen;
diff --git a/src/lib/app/mainapplication.cpp b/src/lib/app/mainapplication.cpp
index d4f705c23..3bd90f6ad 100644
--- a/src/lib/app/mainapplication.cpp
+++ b/src/lib/app/mainapplication.cpp
@@ -73,10 +73,6 @@
 #include <QTimer>
 #include <QDir>
 
-#if defined(PORTABLE_BUILD) && !defined(NO_SYSTEM_DATAPATH)
-#define NO_SYSTEM_DATAPATH
-#endif
-
 #if QT_VERSION < 0x050000
 #include "qwebkitversion.h"
 #endif
@@ -105,6 +101,7 @@ MainApplication::MainApplication(int &argc, char** argv)
     , m_dbWriter(new DatabaseWriter(this))
     , m_uaManager(new UserAgentManager)
     , m_isPrivateSession(false)
+    , m_isPortable(false)
     , m_isClosing(false)
     , m_isStateChanged(false)
     , m_isRestoring(false)
@@ -128,23 +125,6 @@ MainApplication::MainApplication(int &argc, char** argv)
     DATADIR.append(QLatin1String("../Resources/"));
 #endif
 
-#ifdef PORTABLE_BUILD
-    PROFILEDIR = DATADIR + "profiles/";
-#else
-    bool confPathExists = QDir(QDir::homePath() + "/.config/qupzilla").exists();
-    bool homePathExists = QDir(QDir::homePath() + "/.qupzilla").exists();
-
-    if (homePathExists && !confPathExists) {
-        PROFILEDIR = QDir::homePath() + "/.qupzilla/";
-    }
-    else {
-        PROFILEDIR = QDir::homePath() + "/.config/qupzilla/";
-    }
-#endif
-
-    TRANSLATIONSDIR = DATADIR + "locale/";
-    THEMESDIR = DATADIR + "themes/";
-
     setWindowIcon(QIcon(":icons/exeicons/qupzilla-window.png"));
     bool noAddons = false;
     bool newInstance = false;
@@ -163,6 +143,9 @@ MainApplication::MainApplication(int &argc, char** argv)
             case Qz::CL_StartWithProfile:
                 startProfile = pair.text;
                 break;
+            case Qz::CL_StartPortable:
+                m_isPortable = true;
+                break;
             case Qz::CL_NewTab:
                 messages.append(QLatin1String("ACTION:NewTab"));
                 m_postLaunchActions.append(OpenNewTab);
@@ -205,13 +188,28 @@ MainApplication::MainApplication(int &argc, char** argv)
         }
     }
 
+    if (isPortable()) {
+        std::cout << "QupZilla: Running in Portable Mode." << std::endl;
+        PROFILEDIR = DATADIR + "profiles/";
+    }
+    else {
+        bool confPathExists = QDir(QDir::homePath() + "/.config/qupzilla").exists();
+        bool homePathExists = QDir(QDir::homePath() + "/.qupzilla").exists();
+
+        if (homePathExists && !confPathExists) {
+            PROFILEDIR = QDir::homePath() + "/.qupzilla/";
+        }
+        else {
+            PROFILEDIR = QDir::homePath() + "/.config/qupzilla/";
+        }
+    }
+
+    TRANSLATIONSDIR = DATADIR + "locale/";
+    THEMESDIR = DATADIR + "themes/";
+
     // Don't start single application in private browsing
     if (!m_isPrivateSession) {
-#ifndef PORTABLE_BUILD
-        QString appId = "QupZillaWebBrowser";
-#else
-        QString appId = "QupZillaWebBrowserPortable";
-#endif
+        QString appId = isPortable() ? "QupZillaWebBrowserPortable" : "QupZillaWebBrowser";
 
         if (newInstance) {
             if (startProfile.isEmpty() || startProfile == QLatin1String("default")) {
@@ -337,14 +335,14 @@ void MainApplication::postLaunch()
     connect(this, SIGNAL(messageReceived(QString)), this, SLOT(receiveAppMessage(QString)));
     connect(this, SIGNAL(aboutToQuit()), this, SLOT(saveSettings()));
 
-#ifndef PORTABLE_BUILD
-    Settings settings;
-    bool alwaysCheckDefaultBrowser = settings.value("Web-Browser-Settings/CheckDefaultBrowser", DEFAULT_CHECK_DEFAULTBROWSER).toBool();
-    if (alwaysCheckDefaultBrowser) {
-        alwaysCheckDefaultBrowser = checkDefaultWebBrowser();
-        settings.setValue("Web-Browser-Settings/CheckDefaultBrowser", alwaysCheckDefaultBrowser);
+    if (!isPortable()) {
+        Settings settings;
+        bool alwaysCheckDefaultBrowser = settings.value("Web-Browser-Settings/CheckDefaultBrowser", DEFAULT_CHECK_DEFAULTBROWSER).toBool();
+        if (alwaysCheckDefaultBrowser) {
+            alwaysCheckDefaultBrowser = checkDefaultWebBrowser();
+            settings.setValue("Web-Browser-Settings/CheckDefaultBrowser", alwaysCheckDefaultBrowser);
+        }
     }
-#endif
 }
 
 void MainApplication::loadSettings()
@@ -510,6 +508,15 @@ bool MainApplication::isPrivateSession() const
     return m_isPrivateSession;
 }
 
+bool MainApplication::isPortable() const
+{
+#ifdef PORTABLE_BUILD
+    return true;
+#else
+    return m_isPortable;
+#endif
+}
+
 bool MainApplication::isStartingAfterCrash() const
 {
     return m_startingAfterCrash;
diff --git a/src/lib/app/mainapplication.h b/src/lib/app/mainapplication.h
index c9d9ced8b..5ea284c2d 100644
--- a/src/lib/app/mainapplication.h
+++ b/src/lib/app/mainapplication.h
@@ -85,6 +85,7 @@ public:
     bool isClosing() const;
     bool isRestoring() const;
     bool isPrivateSession() const;
+    bool isPortable() const;
     bool isStartingAfterCrash() const;
     int windowCount() const;
     QString currentLanguageFile() const;
@@ -197,6 +198,7 @@ private:
     QString m_activeThemePath;
 
     bool m_isPrivateSession;
+    bool m_isPortable;
     bool m_isClosing;
     bool m_isStateChanged;
     bool m_isRestoring;
diff --git a/src/lib/app/qz_namespace.h b/src/lib/app/qz_namespace.h
index 21a4b47c9..76e98f94d 100644
--- a/src/lib/app/qz_namespace.h
+++ b/src/lib/app/qz_namespace.h
@@ -71,6 +71,7 @@ enum CommandLineAction {
     CL_ToggleFullScreen,
     CL_StartPrivateBrowsing,
     CL_StartNewInstance,
+    CL_StartPortable,
     CL_ExitAction
 };
 
@@ -128,12 +129,6 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(Qz::NewTabPositionFlags)
 #define DEFAULT_DOWNLOAD_USE_NATIVE_DIALOG true
 #endif
 
-#ifdef PORTABLE_BUILD
-#define DEFAULT_ENABLE_PLUGINS false
-#else
-#define DEFAULT_ENABLE_PLUGINS true
-#endif
-
 #define QTWEBKIT_FROM_2_2 \
     (QT_VERSION >= 0x050000 || (QTWEBKIT_VERSION >= QTWEBKIT_VERSION_CHECK(2, 2, 0)))
 
diff --git a/src/lib/network/schemehandlers/qupzillaschemehandler.cpp b/src/lib/network/schemehandlers/qupzillaschemehandler.cpp
index ebf567d06..873e90019 100644
--- a/src/lib/network/schemehandlers/qupzillaschemehandler.cpp
+++ b/src/lib/network/schemehandlers/qupzillaschemehandler.cpp
@@ -422,11 +422,7 @@ QString QupZillaSchemeReply::configPage()
         QString KDEIntegration = tr("Disabled");
 #endif
 
-#ifdef PORTABLE_BUILD
-        QString portableBuild = tr("<b>Enabled</b>");
-#else
-        QString portableBuild = tr("Disabled");
-#endif
+        QString portableBuild = mApp->isPortable() ? tr("<b>Enabled</b>") : tr("Disabled");
 
         cPage.replace(QLatin1String("%BUILD-CONFIG-TEXT%"),
                       QString("<dt>%1</dt><dd>%2<dd>").arg(tr("Debug build"), debugBuild) +
diff --git a/src/lib/plugins/plugins.cpp b/src/lib/plugins/plugins.cpp
index 0e9399fa7..80afe3fe7 100644
--- a/src/lib/plugins/plugins.cpp
+++ b/src/lib/plugins/plugins.cpp
@@ -83,7 +83,7 @@ void Plugins::loadSettings()
 {
     Settings settings;
     settings.beginGroup("Plugin-Settings");
-    m_pluginsEnabled = settings.value("EnablePlugins", DEFAULT_ENABLE_PLUGINS).toBool();
+    m_pluginsEnabled = settings.value("EnablePlugins", !mApp->isPortable()).toBool();
     m_allowedPlugins = settings.value("AllowedPlugins", QStringList()).toStringList();
     settings.endGroup();
 
@@ -165,11 +165,14 @@ void Plugins::loadAvailablePlugins()
     m_pluginsLoaded = true;
 
     QStringList dirs;
-    dirs << mApp->DATADIR + "plugins/"
-         // Portable build: Load only plugins from DATADIR/plugins/ directory.
-         // Loaded plugins are saved with relative path, instead of absolute for
-         // normal build.
-#ifndef PORTABLE_BUILD
+    dirs << mApp->DATADIR + "plugins/";
+
+    // Portable build: Load only plugins from DATADIR/plugins/ directory.
+    // Loaded plugins are saved with relative path, instead of absolute for
+    // normal build.
+
+    if (!mApp->isPortable()) {
+        dirs
 #if defined(QZ_WS_X11) && !defined(NO_SYSTEM_DATAPATH)
 #ifdef USE_LIBPATH
          << USE_LIBPATH "qupzilla/"
@@ -177,9 +180,8 @@ void Plugins::loadAvailablePlugins()
          << "/usr/lib/qupzilla/"
 #endif
 #endif
-         << mApp->PROFILEDIR + "plugins/"
-#endif
-         ;
+         << mApp->PROFILEDIR + "plugins/";
+    }
 
     foreach (const QString &dir, dirs) {
         QDir pluginsDir = QDir(dir);
diff --git a/src/lib/preferences/pluginsmanager.cpp b/src/lib/preferences/pluginsmanager.cpp
index 012b3c275..b1d62e010 100644
--- a/src/lib/preferences/pluginsmanager.cpp
+++ b/src/lib/preferences/pluginsmanager.cpp
@@ -40,7 +40,7 @@ PluginsManager::PluginsManager(QWidget* parent)
     //Application Extensions
     Settings settings;
     settings.beginGroup("Plugin-Settings");
-    bool appPluginsEnabled = settings.value("EnablePlugins", DEFAULT_ENABLE_PLUGINS).toBool();
+    bool appPluginsEnabled = settings.value("EnablePlugins", !mApp->isPortable()).toBool();
     settings.endGroup();
 
     ui->allowAppPlugins->setChecked(appPluginsEnabled);
@@ -115,11 +115,12 @@ void PluginsManager::save()
         if (item->checkState() == Qt::Checked) {
             const Plugins::Plugin plugin = item->data(Qt::UserRole + 10).value<Plugins::Plugin>();
 
-#ifndef PORTABLE_BUILD
-            allowedPlugins.append(plugin.fullPath);
-#else
-            allowedPlugins.append(mApp->DATADIR + "plugins/" + plugin.fileName);
-#endif
+            if (!mApp->isPortable()) {
+                allowedPlugins.append(plugin.fullPath);
+            }
+            else {
+                allowedPlugins.append(mApp->DATADIR + "plugins/" + plugin.fileName);
+            }
         }
     }