I updated Firefox from v43, on Windows 10 64 bit pc, to Firefox Quantum v57 and when I go to the Add-ons page to look for add-ons the page has about 5 current add-ons, which I don't need or use, I can find no more add-ons anywhere. I first tried the link at the bottom of the page to "See more add-ons" but there is nothing there. Then I tried to get add-ons from the Mozilla website but the same page appears and is completely blank. I have tried using the add-ons that I want, such as Video Downloader, but none of these will load. I am thinking that Quantum has no add-ons to use, and that I may as well go back to Firefox v47 or one of the older versions. Failing that I will uninstall Firefox altogether and just use Chrome, which is at least useable. Any suggestions will be gratefully received on how to get a choice of add-ons for Quantum v57.