diff --git a/dockerfile-kasm-brave b/dockerfile-kasm-brave
index d6b198d..9e9df6d 100644
--- a/dockerfile-kasm-brave
+++ b/dockerfile-kasm-brave
@@ -25,6 +25,10 @@ ENV LAUNCH_URL  http://kasmweb.com
 COPY ./src/ubuntu/install/brave/custom_startup.sh $STARTUPDIR/custom_startup.sh
 RUN chmod +x $STARTUPDIR/custom_startup.sh
 
+ENV KASM_RESTRICTED_FILE_CHOOSER=1
+COPY ./src/ubuntu/install/gtk/ $INST_SCRIPTS/gtk/
+RUN $INST_SCRIPTS/gtk/install_restricted_file_chooser.sh
+
 ######### End Customizations ###########
 
 RUN chown 1000:0 $HOME
@@ -35,4 +39,3 @@ WORKDIR $HOME
 RUN mkdir -p $HOME && chown -R 1000:0 $HOME
 
 USER 1000
-
diff --git a/dockerfile-kasm-edge b/dockerfile-kasm-edge
index 370e4f3..d811c22 100644
--- a/dockerfile-kasm-edge
+++ b/dockerfile-kasm-edge
@@ -19,6 +19,10 @@ RUN cp $HOME/.config/xfce4/xfconf/single-application-xfce-perchannel-xml/* $HOME
 RUN cp /usr/share/extra/backgrounds/bg_kasm.png /usr/share/extra/backgrounds/bg_default.png
 RUN apt-get remove -y xfce4-panel
 
+ENV KASM_RESTRICTED_FILE_CHOOSER=1
+COPY ./src/ubuntu/install/gtk/ $INST_SCRIPTS/gtk/
+RUN $INST_SCRIPTS/gtk/install_restricted_file_chooser.sh
+
 # Setup the custom startup script that will be invoked when the container starts
 ENV LAUNCH_URL  http://kasmweb.com
 
diff --git a/dockerfile-kasm-tor-browser b/dockerfile-kasm-tor-browser
index 00e0505..6d8430a 100644
--- a/dockerfile-kasm-tor-browser
+++ b/dockerfile-kasm-tor-browser
@@ -19,6 +19,10 @@ RUN cp $HOME/.config/xfce4/xfconf/single-application-xfce-perchannel-xml/* $HOME
 RUN cp /usr/share/extra/backgrounds/bg_kasm.png /usr/share/extra/backgrounds/bg_default.png
 RUN apt-get remove -y xfce4-panel
 
+ENV KASM_RESTRICTED_FILE_CHOOSER=1
+COPY ./src/ubuntu/install/gtk/ $INST_SCRIPTS/gtk/
+RUN $INST_SCRIPTS/gtk/install_restricted_file_chooser.sh
+
 # Setup the custom startup script that will be invoked when the container starts
 ENV LAUNCH_URL about:blank
 RUN echo $' \n\