firebug extension update check

gistfile1.txt

curl --trace /tmp/curltrace -i \
    -H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0' \
    -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' \
    -H 'Accept-Language: en-US,en;q=0.5' \
    -H 'Accept-Encoding: gzip, deflate' \
    -H 'Cookie: __utma=150903082.823062721.1373600861.1373600861.1373600861.1; __utmz=150903082.1373600861.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)' \
    -H 'Connection: keep-alive' \
    -H 'Pragma: no-cache' \
    -H 'Cache-Control: no-cache' \
    'https://versioncheck.addons.mozilla.org/update/VersionCheck.php?reqVersion=2&id=firebug@software.joehewitt.com&version=1.11.4&maxAppVersion=22.*&status=userEnabled&appID={ec8030f7-c20a-464f-9b0e-13a3a9e97384}&appVersion=22.0&appOS=Linux&appABI=x86_64-gcc3&locale=en-US&currentAppVersion=22.0&updateType=97&compatMode=ignore'