558590 - specific evernote webpage causes high CPU, won't render right-click boxes, slow typing, eventual crash

Status: RESOLVED INVALID

(Firefox :: General, defect)

Description

[morris.570]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3

(This was purposely not filed under bad webpages because the problem results in the crash of the browser.)

If you visit any Evernote online note:

http://www.evernote.com/pub/rader5/medschoolpub/#v=l&n=f8f455a7-f654-430a-b4b6-236e20266b35&b=0

with the latest devel version or 3.6.3 you will see the following symptoms:
1) CPU Usage jumps up (25% on quad core, 50% on dual)
2) Right-click boxes or file menu boxes will not render
3) typing in search or address bar will be very slow

Reproducible: Always

Steps to Reproduce:
1. visit http://www.evernote.com/pub/rader5/medschoolpub/#v=l&n=f8f455a7-f654-430a-b4b6-236e20266b35&b=0

Actual Results:  
Go to http://www.evernote.com/pub/rader5/medschoolpub/#v=l&n=f8f455a7-f654-430a-b4b6-236e20266b35&b=0

Expected Results:  
Not to do those things ;).

Comment 1

[morris.570]

This seems to happen with chrome also (though it is only a CPU problem), so I think this is more the fault of those over at Evernote.   I will submit a bug with them.

Comment 2

[Wayne Mery (:wsmwk)]

assuming invalid per comment 1. However, if you get a stacktrace please post the crash report id, or attach a stacktrace as an attachment to the bug.
https://developer.mozilla.org/En/How_to_get_a_stacktrace_for_a_bug_report