Initial commit with first version.

README.md

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+### Build kinda webapp with Firefox
+
+Firefox [removed](https://bugzilla.mozilla.org/show_bug.cgi?id=1682593) the SSB feature, so we're not able to add a webapp in this way.
+I took the script from [here](https://wiki.postmarketos.org/wiki/Firefox) and modified it a little bit.
+The ssb part is removed and I added the part below, so we hide the tabs toolbar and navbar.
+There is also the option of starting the session in kioskmode, but I wasn't able to copy and paste there. That's why I went this way.  
+For now you're able to browse trough the internet with one tab. I didn't managed it to block all domains except the given one.
+If you got any idea how to do that, let me know!  
+  
+To add a webapp with launcher on your homescreen run it like this:  
+```./add-webapp.sh "Hydrogen" "https://hydrogen.datenkastl.de"```
+
+After that you have a new launcher on your homescreen from where you can open the given website inside a new profile.  
+Have fun!

add-webapp.sh

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+#!/usr/bin/env bash
+# Create firefox profile
+set -e
+name=$1
+url=$2
+# Ugly, copy-pasted from SO
+simple_name=$(echo "$name" | awk '{print tolower($0)}' | sed 's/ //g')
+echo "Creating webapp $name, using $url."
+
+firefox-esr -CreateProfile $simple_name
+
+# Create desktop entry
+cat >~/.local/share/applications/$simple_name.desktop <<EOL
+[Desktop Entry]
+Exec=firefox-esr -P $simple_name $url
+Icon=/home/user/.local/share/applications/$simple_name.png
+Type=Application
+Terminal=false
+Name=$name
+StartupNotify=true
+StartupWMClass=firefox
+EOL
+
+# Get icon
+wget $url/favicon.ico -O /tmp/favicon.ico
+convert /tmp/favicon.ico /tmp/favicon.png
+mv /tmp/favicon.png .local/share/applications/$simple_name.png ||
+mv /tmp/favicon-0.png .local/share/applications/$simple_name.png
+rm /tmp/favicon*.png
+
+# Modify chrome/userChrome.css to hide everyting on top and bottom
+
+profile_dir=$(find ~/.mozilla/firefox/ -maxdepth 1 | grep $simple_name)
+
+mkdir $profile_dir/chrome
+cat >$profile_dir/chrome/userChrome.css <<EOL
+/* Hide tabs toolbar on top*/
+#TabsToolbar {
+   visibility: collapse !important;
+}
+
+/* Hide navbar on top*/
+#nav-bar {
+  /* customize this value. */
+  --navbar-margin: -30px;
+
+  margin-top: var(--navbar-margin);
+  margin-bottom: 0;
+  z-index: -100;
+  transition: all 0.3s ease !important;
+  opacity: 0;
+}
+
+#navigator-toolbox:focus-within > #nav-bar,
+#navigator-toolbox:hover > #nav-bar
+{
+  margin-top: 0;
+  margin-bottom: var(--navbar-margin);
+  z-index: 100;
+  opacity: 1;
+}
+
+/* Hide tabs toolbar on bottom*/
+#TabsToolbar {
+   visibility: collapse !important;
+}
+
+/* Hide navbar on bottom*/
+#nav-bar {
+  /* customize this value. */
+  --navbar-margin: -30px;
+
+  margin-top: 0;
+  margin-bottom: var(--navbar-margin);
+  z-index: -100;
+  transition: all 0.3s ease !important;
+  opacity: 0;
+}
+
+#navigator-toolbox:focus-within > #nav-bar,
+#navigator-toolbox:hover > #nav-bar
+{
+  margin-top: var(--navbar-margin);
+  margin-bottom: 0;
+  z-index: 100;
+  opacity: 1;
+}
+
+EOL