Used to love this app but like others when this app is enable now in its current version it causes a memory leak the more you use this app the more the memory grows till Firefox Crashes. Disable this app and the memory leak is gone and firefox memory use stay the same. Firefox should not continue to increase memory with 5 tabs open and at idle with this app running. Apon disabling this app firefox return to normal memory behavior. I don't know what heppened but this app used to be good. Now it just slow down firefox.and makes the browser crash. please fix it... Hence the 2 stars until the memory leak is fixed