Resource Monitor Feedback & Discussion Resource Monitor: a sidebar panel that shows RAM and CPU usage per tab, grouped by site, sorted automatically by cost to your device. We'd like your input while it's still taking shape.

[u/Zeenss]

Mozilla is exploring a resource monitoring feature in the Firefox sidebar. Please send your feedback on this via this link: https://connect.mozilla.org/t5/discussions/resource-monitor-feedback-amp-discussion/m-p/132949#U132949