I have noticed not with the current but the previous update I have more fan activity (on My lenovo laptop)
on sites like youtube and other video sites.
Using intel graphics temps all seem to be fine and graphics (Just from my perspective seem better)
Cpu usage idle fine usually around 1-2% for each core
Am I just seeing something thats not there or has soemething changed
Just curious
Oh and firefox
And on another note appears battery life may be a tad better to will keep a tab on it.