Since IE is obsolete now thanks to Microsoft Edge I now use edge, in case you didn't know IE got its stuffty rep sometime between IE7-9 and then 10 fixed its bullstuff but the damage was done and because of no protection against stuffty toolbars, people would blame their slow speed on IE itself where IE10 was actually pretty fast, but because of the damage done to the brand it got poor support from websites and only succeeded in Enterprise and big companies for some odd reason.
Also Internet Explorer
is NOT Microsoft Edge, Edge is built from the ground up using the new Modern App platform and I'm looking forward to its Extension Support in 2016(Yeah yeah late to the party again at least its getting extensions)
My backup browser is Waterfox (Firefox branch designed for 64bit systems) but I have since dumped it for
Liri Browser, a new Browser built off of Chromium that isn't a Memory hog, or bloated and is cross-platform.