User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b5) Gecko/2008032620 Firefox/3.0b5 After having 2 google spreadsheets open for a couple hours, Firefox performance slows to the point where I am waiting 5+ seconds to change tabs. Within the task manager CPU usage for Firefox hovers around 40 - 50%. Firefox behavior returns to normal if I close the 2 google spreadsheets. I have repeated this process over 4x. In a few cases, I was attaching a file to an email within gmail (google apps) when I noticed Firefox performance was degrading. This may be a red herring. I have exported the 2 spreadsheets to xls and attached them to this bug report. Reproducible: Always Steps to Reproduce: 1. Open Gmail in a new tab 2. Open Google docs in new tab 3. Open spreadsheet 1 (attached) in new tab 4. Open spreadsheet 2 (attached) in new tab 5. Wait about 2 hours. 6. Perform some actions in gmail such as composing email in a pop-up window and attaching files. Actual Results: Firefox CPU usage hung around 50%. Firefox became unresponsive and slow - about 5 seconds between UI updates when switching tabs. Expected Results: Firefox performance should not degrade and CPU usage should not spike.
kevin, do you still see this problem
Unfortunately, I cannot comment on the current status as I am using Chrome as my main browser now.
Well, as you can not update us and no one else can see this bug, WFM.