Start Firefox with new profile

firefox-priv.sh

#!/bin/bash

#
# Starts Firefox with a new temporary profile which is deleted when FF exits.
#

tempdir=$(mktemp -d --tmpdir firefox-priv.XXXXXX)
echo "$(date): starting Firefox with temporary profile at '$tempdir'"

cleanupOnExit ()
{
    echo "$(date): removing temporary Firefox profile at '$tempdir'"
    rm -rf "$tempdir"
}
trap cleanupOnExit EXIT


# customize some preferences in new profile:
cat > "$tempdir/user.js" << END_OF_TEXT

// disable any data reporting and also any notification page about this:
user_pref("datareporting.policy.dataSubmissionEnabled",false);

// disable some WebRTC/multimedia stuff
user_pref("media.peerconnection.enabled",false);
user_pref("media.navigator.enabled",false);

// enable some privacy settings
user_pref("browser.selfsupport.url","");

END_OF_TEXT


firefox --new-instance --profile "$tempdir" --private-window "$@"