This add-on is great it does far more than I ever expected, It is hard to explain all that it does on all six of my laptops and my I phones and also on the android phones I have, (family members), there is only one draw back that I have found that concerns me, It is with the iphone, I cannot seem to get it to work as well on this phone as I can on my android phone, I have not taken the time to check all the settings on the apple phone mostly due to it being a standby phone in case one of the others fail, but other than that I love this add-on extension what ever you prefer to call it, just remember to check all the setings for getting the most out of this wonderful tool for firefox oh yeah FUCK INTERNET EXPLORER!!