Is Firefox 4 making my Mac get really hot?

[johneaston]

I have a 2 year old Mac which is suddenly (and for the first time) getting very hot - enough to be uncomfortable on my lap.

It's happened the last couple of days and I downloaded and started using FF4 a couple of days ago.

I can't believe a web browser does it? Does it?

 

[simsaladimbamba]

Have a look at Activity Monitor (Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.

image below uses sorting by CPU as an example

 

[johneaston]

ok. Before we go any further - how'd you get your GUI to look so cool??

 

[simsaladimbamba]

ok. Before we go any further - how'd you get your GUI to look so cool??

It is the normal GUI and Photoshop and Mac OS X' ability to properly screenshot elements of the UI.
Taking screenshots in Mac OS X