I think the source of OPs problem is the type of websites he is visiting rather than the default memory usage patterns of a browser, but.... 8GB really isn't t

I think the source of OPs problem is the type of websites he is visiting rather than the default memory usage patterns of a browser, but.... 8GB really isn't that much memory at all when it comes to the resource hogging that is occuring at every level of the stack. Win 10 is using like 4GB RAM at idle these days and one Youtube tab takes the other 4 :)