293715 - CPU 100% when typing in any textbox

Status: RESOLVED WORKSFORME

(Toolkit :: Form Manager, defect)

Description

[Daniel Quigan]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050510 Firefox/1.0.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050510 Firefox/1.0.4

In any textbox (Google search, gmail subject/body, forum post/replys), the text
appears much slower than expected.  Upon further investigation, it is seen that
the CPU usage is jumping up to 100%.

Reproducible: Always

Steps to Reproduce:
1. Load any page with a textbox (eg Google search) 
2. Type at a decent pace (80WPM+)
3. See that the words take longer to appear than they would in another program
4. Check CPU usage in Task manager, see that it jumps to 100% when typing.

Actual Results:  
When I am not typing in the textbox, the CPU is 0%.  When I am typing, it jumps
up to 100% or very close to it.  This is only in web-based boxes - if I type in
the address bar, it performs as expected.

Expected Results:  
The text should appear as it is typed, and the CPU should stay around 2-5% or
whatever is considered normal for text input.

This occurs in 1.03 and 1.0.4RC.

Comment 1

[Daniel Quigan]

I have found that the TabBrowser Extensions plugin available at
http://piro.sakura.ne.jp/xul/tabextensions/index.html.en has been causing this
problem.