Thread:BunsenH/@comment-5394165-20160421173749/@comment-7326455-20160424221236

Aye, Firefox doesn't load tabs until you look at them, and tabs that are out-of-focus also use less memory. Plus, it only has one process per instance of Firefox (downside is that if one tab crashes, all Firefox crashes). IE used to have one process per tab - plus side is that if one tab crashes, only that tab goes down, but the very very downside is that each tab has the system load of an entire browser.

Gotta love IE... or not.