User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3a) Gecko/20021207 Phoenix/0.5 There are some banner ads that make use of animation. These animations consume CPU resources. When the ad is not displayed, such as when the window is minimized or blocked from view, the CPU usage remains the same. Reproducible: Always Steps to Reproduce: 1.Go to a website with an animated graphic 2.Minimize window 3.Watch CPU utilization Actual Results: CPU utilization remains heavy Expected Results: Mozilla should free the CPU resource when it is not needed.

Reporter: could you try recent nightly or Mozilla?

Bug 120154?

We have many bugs related to CPU utilization of animated GIFs in general - some of them also mention this problem besides the original problem, but bug #120154 seems to only deal with the CPU utilization during minimized / "in other tab"-stuff. => resolving "duplicate" *** This bug has been marked as a duplicate of 120154 ***

verified.

*** Bug 248743 has been marked as a duplicate of this bug. ***