431638 - Firefox performance degrades using Google Spreadsheets

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Kevin]

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.

Comment 1

[Kevin]

Attachment: Spreadsheet 1

Upload to Google docs

Comment 2

[Kevin]

Attachment: Spreadsheet 2

Upload to google docs

Comment 3

[Wayne Mery (:wsmwk)]

kevin, do you still see this problem

Comment 4

[Kevin]

Unfortunately, I cannot comment on the current status as I am using Chrome as my main browser now.

Comment 5

[Tyler Downer [He/Him]]

Well, as you can not update us and no one else can see this bug, WFM.