635116 - middle clicking with trackpad results in strange scroll behavior

Status: RESOLVED INCOMPLETE

(Firefox :: General, defect)

Description

[Marc Reisner]

User-Agent:       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b11) Gecko/20100101 Firefox/4.0b11
Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b11) Gecko/20100101 Firefox/4.0b11

When I use my trackpad to middle click (two buttons at a time) every other time the scroll cursor will appear when I meant to open something in a new tab.  It looks different than the firefox scroll cursor.  This does not happen when using an external mouse.  Also, when intending to use the scroll cursor, every other time it will appear, but it doesn't do anything.

Reproducible: Sometimes

Steps to Reproduce:
Case 1:
1. Choose a link or bookmark
2. Middle click the link

or

Case 2:
1. Middle click to scroll
Actual Results:  
Scroll cursor appears, has no function

Expected Results:  
Opened new tab (case 1) or scrolled down the page (case 2)

This only happens when using my laptop's trackpad; not when using an external mouse.

Comment 1

[Tyler Downer [He/Him]]

This bug was reported using a pre-release version of Firefox 4. Now that Firefox 4.0.1 final has been released, can you please update and retest your bug? A fresh profile would be a good starting place to test, 
http://support.mozilla.com/kb/Managing+profiles. If you continue to see the issue, can you please update this bug with your results?

Filter: firefox4prebugsunco

Comment 2

[Marc Reisner]

I don't remember what the bug number was, but I found out that the bug was caused by Task Manager and it still is a problem.

Comment 3

[Wayne Mery (:wsmwk)]

If you still see this problem when using a current version, please post new information