diff --git a/i2pbrowser/main.go b/i2pbrowser/main.go
index 92f1f24..90bba18 100644
--- a/i2pbrowser/main.go
+++ b/i2pbrowser/main.go
@@ -11,6 +11,7 @@ import (
 
 var (
 	u = flag.Bool("usability", false, "Launch in usability mode")
+	a = flag.Bool("application", false, "Launch in app mode")
 	d = flag.String("directory", defaultDir(), "Directory to store profiles in")
 )
 
@@ -36,6 +37,11 @@ func main() {
 	if len(flag.Args()) > 0 {
 		url = flag.Arg(0)
 	}
+	application := *a
+	if application {
+		goi2pbrowser.BrowseApp(*d, url)
+		return
+	}
 	usability := *u
 	switch usability {
 	case true:
diff --git a/run.go b/run.go
index e67c3c0..ce5f71a 100644
--- a/run.go
+++ b/run.go
@@ -47,3 +47,22 @@ func BrowseUsability(profileDir, url string) {
 	defer FIREFOX.Close()
 	<-FIREFOX.Done()
 }
+
+// BrowseApp launches a Firefox browser configured to use I2P and waits for it to exit.
+// The profile is in "Usability" mode
+func BrowseApp(profileDir, url string) {
+	var profilePath string
+	var err error
+	profilePath, err = UnpackApp(profileDir)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	FIREFOX, ERROR := fcw.BasicFirefox(profilePath, false, url)
+	if ERROR != nil {
+		log.Println(ERROR)
+		return
+	}
+	defer FIREFOX.Close()
+	<-FIREFOX.Done()
+}
diff --git a/unembed.go b/unembed.go
index 1094019..06194bf 100644
--- a/unembed.go
+++ b/unembed.go
@@ -5,6 +5,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/artdarek/go-unzip/pkg/unzip"
 )
@@ -20,10 +21,7 @@ func existsAlready(profileDir string) bool {
 // path to the profile and possibly, an error if something goes wrong. If everything
 // works, the error will be nil
 func UnpackBase(profileDir string) (string, error) {
-	if existsAlready(profileDir) {
-		log.Println(profileDir, "exists already")
-		return filepath.Join(profileDir, "i2p.firefox.base.profile"), nil
-	}
+	log.Println(profileDir, "exists already")
 	os.MkdirAll(filepath.Dir(profileDir), 0755)
 	zipFile := filepath.Join(filepath.Dir(profileDir), "i2p.firefox.base.profile.zip")
 	err := ioutil.WriteFile(zipFile, BaseProfile, 0644)
@@ -42,10 +40,7 @@ func UnpackBase(profileDir string) (string, error) {
 // path to the profile and possibly, an error if something goes wrong. If everything
 // works, the error will be nil
 func UnpackUsability(profileDir string) (string, error) {
-	if existsAlready(profileDir) {
-		log.Println(profileDir, "exists already")
-		return filepath.Join(profileDir, "i2p.firefox.usability.profile"), nil
-	}
+	log.Println(profileDir, "exists already")
 	os.MkdirAll(filepath.Dir(profileDir), 0755)
 	zipFile := filepath.Join(filepath.Dir(profileDir), "i2p.firefox.usability.profile.zip")
 	err := ioutil.WriteFile(zipFile, UsabilityProfile, 0644)
@@ -59,3 +54,116 @@ func UnpackUsability(profileDir string) (string, error) {
 	}
 	return filepath.Join(profileDir, "i2p.firefox.usability.profile"), nil
 }
+
+// UnpackApp unpacks a "App" mode profile into the "profileDir" and returns the
+// path to the profile and possibly, an error if something goes wrong. If everything
+// works, the error will be nil
+func UnpackApp(profileDir string) (string, error) {
+	log.Println(profileDir, "exists already")
+	os.MkdirAll(filepath.Dir(profileDir), 0755)
+	zipFile := filepath.Join(filepath.Dir(profileDir), "i2p.firefox.usability.profile.zip")
+	err := ioutil.WriteFile(zipFile, UsabilityProfile, 0644)
+	if err != nil {
+		return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+	}
+	uz := unzip.New()
+	_, err = uz.Extract(zipFile, profileDir)
+	unzippedFiles := strings.Replace(filepath.Join(profileDir, "i2p.firefox.usability.profile.zip"), ".zip", "", 1)
+	if !existsAlready(filepath.Join(profileDir, "i2p.firefox.app.profile")) {
+		if err = os.Rename(unzippedFiles, filepath.Join(profileDir, "i2p.firefox.app.profile")); err != nil {
+			return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+		}
+	}
+	if err := os.MkdirAll(filepath.Join(profileDir, "i2p.firefox.app.profile", "chrome"), 0755); err != nil {
+		return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+	}
+	if err := ForceUserChromeCSS(filepath.Join(profileDir, "i2p.firefox.app.profile", "chrome", "userChrome.css")); err != nil {
+		return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+	}
+	if err := AppifyUserJS(filepath.Join(profileDir, "i2p.firefox.app.profile", "user-overrides.js")); err != nil {
+		return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+	}
+	if err := AppifyUserJS(filepath.Join(profileDir, "i2p.firefox.app.profile", "user.js")); err != nil {
+		return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+	}
+	if err := AppifyUserJS(filepath.Join(profileDir, "i2p.firefox.app.profile", "prefs.js")); err != nil {
+		return filepath.Join(profileDir, "i2p.firefox.app.profile"), err
+	}
+	return filepath.Join(profileDir, "i2p.firefox.app.profile"), nil
+}
+
+func AppifyUserJS(profile string) error {
+	content, err := ioutil.ReadFile(profile)
+	if err != nil {
+		return err
+	}
+	lines := strings.Split(string(content), "\n")
+	for i, line := range lines {
+		if strings.Contains(line, "toolkit.legacyUserProfileCustomizations.stylesheets\"") {
+			if strings.Contains(line, "true") {
+				return nil
+			} else {
+				line = strings.Replace(line, "false", "true", 1)
+			}
+		}
+		lines[i] = line
+	}
+	out := strings.Join(lines, "\n")
+	if err := ioutil.WriteFile(profile, []byte(out), 0644); err != nil {
+		return err
+	}
+	return nil
+}
+
+func ForceUserChromeCSS(profile string) error {
+	var userChrome = `@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+
+/* only needed once */
+
+@namespace html url("http://www.w3.org/1999/xhtml");
+#PersonalToolbar,
+#PanelUI-Button,
+#PanelUI-menu-button,
+#star-button,
+#forward-button,
+#home-button,
+#bookmarks-toolbar-button,
+#library-button,
+#sidebar-button,
+#pocket-button,
+#fxa-toolbar-menu-button,
+#reader-mode-button,
+#identity-icon {
+    visibility: collapse;
+}
+
+#urlbar-background {
+    background-color: black !important;
+}
+
+
+/* Remove back button circle */
+
+#back-button:not(:hover),
+#back-button:not(:hover)>.toolbarbutton-icon {
+    background: transparent !important;
+    border: none !important;
+    box-shadow: none !important;
+}
+
+#back-button:hover,
+#back-button:hover>.toolbarbutton-icon {
+    border: none !important;
+    border-radius: 2px !important;
+}
+
+#urlbar-container,
+#nav-bar {
+    visibility: collapse !important
+}
+`
+	if err := ioutil.WriteFile(profile, []byte(userChrome), 0644); err != nil {
+		return err
+	}
+	return nil
+}