643835 - Touchpad scrolling stops working when a tab in the same window uses a plugin

Status: RESOLVED DUPLICATE of bug 273456

(Firefox :: General, defect)

Description

[Kaveh]

User-Agent:       Mozilla/5.0 (Windows NT 5.1; rv:2.0) Gecko/20100101 Firefox/4.0
Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0) Gecko/20100101 Firefox/4.0

The touchpad on my HP elitebook (synaptics with latest drivers) stops working when I open a tab and browse to something that uses a plugin (like a PDF using PDF X-change or Adobe Reader) in tab.  If I switch back to the other non-plugin firefox tab and try to scroll with the touchpad, it fails to work.  Mouse wheel scrolling works fine though.  This started around 4.0b11 or 4.0b12.

Reproducible: Always

Steps to Reproduce:
1. Open a new firefox window
2. Open a tab with nytimes.com and try scrolling via trackpad
3. Open tab and browse to a page that loads a PDF in browser via a plugin (like adobe reader or PDF-X-change)
4. Scroll in the plugin
5. Go back to the nytimes.com tab and try scrollingvia the trackpad
Actual Results:  
Scrolling via trackpad doesn't work

Expected Results:  
Scrolling via trackpad should work no matter what

Comment 1

[Loïc Etienne]

Same here.

Tried with both latest HP driver and latest Synaptics driver.

Issue goes away when closing problematic tab.

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101 Firefox/4.0

Comment 2

[eyal gruss]

for the pdf issue see Bug 315513 and Bug 627275