User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:18.104.22.168) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729) Build Identifier: 0.9.5.1 While trying to type in to the comments text box on Ars Technica, the Firefox process uses available CPU, and the appearance of text noticeable lags the typing. Disabling the Operator extension causes the issue to go away. Reproducible: Always Steps to Reproduce: 1. Visit article on ArsTechnica.com 2. Begin typing in to the reply textarea of the comments section 3. Watch as CPU spikes with key presses and as text lags input. Actual Results: As soon as you stop typing, the CPU load disappears. Expected Results: CPU load should have been negligible for simple typing.
Do you have any of the Operator preferences turned on? Like listen for all change events?
Only the defaults. The ones checked are: Use descriptive names for data formats Display icon in status bar Display icon on location bar Remove duplicates
Operator isn't supported anymore.