Been using Firefox since 1.5. First thing I even download after installing the OS is Firefox!! I always keep my firefox data backup ready, in fact I still have firefox data backups of year 2007 which was taken with FEBE extension.New update is great! Its very fast! Previously it took over a second to launch the browser on SSD, now with quantum update, its blazing fast!! It almost gets launched within clicking on its icon. Also less memory footprints than previous builds.Although I miss my FireFTP, IETab, NASA NightLaunch, FlashGot,Bugmenot and many more extensions, Firefox will be my first choice of browsers. I hope this new update will bring back those users who switched to chrome over past years.