673939 - Scrolling via spacebar sometimes doesn't happen until next mouse movement event

Status: UNCONFIRMED

(Firefox :: Keyboard Navigation, defect)

Description

[Christian Campbell]

User Agent: Mozilla/5.0 (Windows NT 5.1; rv:5.0.1) Gecko/20100101 Firefox/5.0.1
Build ID: 20110707182747

Steps to reproduce:

Press spacebar one or more times on a long page (taller than the viewport) to scroll down.


Actual results:

Nothing until I jiggle the mouse.


Expected results:

Scrolling down without having to generate a mouse event.

Comment 1

[Thomas Ahlblom]

Any example URL?

Does the issue still occur if you start Firefox in Safe Mode?
https://support.mozilla.com/en-US/kb/Safe+Mode

Comment 2

[Christian Campbell]

It happened at

http://www.randsinrepose.com/archives/2011/07/29/the_desktop_transition.html

just now. You might have to experiment with alt-tabbing to other windows, etc, to make it happen. I haven't been able to reproduce the bug reliably.

Don't know about safe mode behaviour; I will see about trying that, although it seems it would be hard to confirm that an intermittent bug is absent.

Comment 3

[Christian Campbell]

Another at:

http://www.zephoria.org/thoughts/archives/2011/07/29/consequences.html