Review for System Monitor by Quantheory
Rated 4 out of 5 stars
This monitor generally works great, and I've found it very useful for determining the cause of lag in flash videos. The view is customizable, enough features but not bloated. The only problem is that I've seen it crash Firefox on some Linux systems, which of course is no good.
This review is for a previous version of the add-on (0.6.3.1-signed.1-signed).To create your own collections, you must have a Mozilla Add-ons account.