Firefox 58 uses a ton of memory, Have completely unistalled it and reinstalled still takes up almost 50% more than chrome

To make is so there is no need to download files i took screen shots and uploaded them to screencast This one is before i uninstalled and i ever removed registry keys rebooted computer Win 10. https://www.screencast.com/t/ufygVNJaxIb This one is after the reinstall and it still said it looks like i reinstalled. https://www.screencast.com/t/ufygVNJaxIb Firefox with one tab open to the default home page right now as i type this and the memory usage it over 300 Mb if i open another tab the memory usage will go up another 100 to 150 mb. Does not matter what site as it can be just google.com at the same time 3 tabs open in chrome and memory usage is around 324 MB. I have turn the performance down to 1 and unchecked all there is to uncheck in that section. Thanks