I have an old iMac with a Core 2 Duo from 2006. It's running Snow Leopard, but I'll be upgrading it to Lion tonight. Now since Firefox 49 recently dropped support for 10.6, 10.7, and 10.8, what is the current best browser for lion? I suppose Firefox 48 will work for quite a while, maybe a year, but after that I'll need a better solution. Any ideas? Thanks.