For all you poor schmucks that got the "automatic" Firefox upgrade & can't play, here's a site to download "older" versions so you can play in the "interum" before Warmerise gets "ported".... https://support.mozilla.org/t5/Install-and-Update/Install-an-older-version-of-Firefox/ta-p/1564.... it'll work for the next couple of days but then after WeBGL; make sure you upgrade.... or use another browser...Like Maxwell sez, "...it's supported by all major browsers..."