optimize-firefox.sh

#!/bin/bash

# Constants
mozillaHome=${HOME}/.mozilla/
sqlite=sqlite3

# Check that the environment is ready to perform the optimisation
which ${sqlite} >/dev/null 2>&1
if [ $? -ne 0 ]
then
	echo "Error: ${sqlite} was not found on this system."
	echo "       Check your PATH, or install ${sqlite}, try: sudo apt-get install ${sqlite}"
	exit 1
fi

proc=$(ps ux | grep -v $0 | egrep -i 'firefox|fennec|seamonkey' | grep -v grep | wc -l)
if [ ${proc} -gt 0 ]
then
    echo "Error: Firefox is running. Please shutdown firefox before running this script"
    exit 1
fi

# Start the optimisation

# Check where the Firefox (Fennec & SeaMonkey) profiles are
ffProfiles=$(find ${mozillaHome} -mindepth 1 -maxdepth 1 -type d ! -name eclipse -a ! -name extensions 2>/dev/null)
for ffProf in ${ffProfiles}
do
    if [ -f "${ffProf}/profiles.ini" ]
    then

        for profileDir in $(cat "${ffProf}/profiles.ini" | grep Path= | sed -e 's/Path=//')
        do
            ffProfDir="${ffProf}/${profileDir}"
			if [ -d "${ffProfDir}" ]
			then
				echo "Info: Processing directory ${ffProfDir}"
				echo "    optimising local files..."

				i=1
				cd "${ffProfDir}"
				for sqlFile in $(find . -type f -name '*.sqlite' -print)
				do
					echo -n "     ${i}. processing file ${sqlFile} "
					${sqlite} ${sqlFile} "VACUUM;" 2>/dev/null
					if [ $? -ne 0 ]
					then
						echo -e " failed\nWarning: file ${sqlFile} could not be optimised."
					else
						echo " done."
					fi
					i=$((i+1))
				done

				echo "    optimisation done."
			else
				echo "Warning: profile ${ffProfDir} not found!"
			fi
        done

    else
        echo "Warning: Firefox profile not found: ${ffProf}/profiles.ini"
    fi
done

echo "Info: optimization done"
exit 0