I think tab unloading in Firefox might predate Chrome. I was using an addon for it called Bar Tabs Heavy in the late 2000s / early 2010s, and I know it was a s

I think tab unloading in Firefox might predate Chrome. I was using an addon for it called Bar Tabs Heavy in the late 2000s / early 2010s, and I know it was a successor to another addon (which I think was just Bar Tabs).