247983 - Middle click scrolling doesn't release if the pointer leaves the window

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[Gavin Chappell]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8

If I press and hold the middle mouse button in order to autoscroll down then
move the cursor out of the active FFx 0.9 window, when I release the middle
button the auto-scroll isn't stopped.

In FFx 0.8, even if my mouse cursor had strayed out of the active window, when I
release the button the page stops scrolling.

Reproducible: Always
Steps to Reproduce:
1. Load a page which scrolls vertically
2. Press and hold middle button while moving mouse down to start a slow autoscroll
3. Move mouse cursor out of the window (on any side) and release the middle button

Actual Results:  
Page continues scrolling until you click/middle click back in the active FFx window.

Expected Results:  
Page stops scrolling at the point the button is released, whether or not the
cursor is inside the active FFx window.

Unsure whether this is a bug or not, but I vastly prefer the original behaviour
as it seems more natural to me :-)

I've reproduced this "bug" on both my work and home PC's.

Comment 1

[Zach Spoelstra]

I'm getting the same thing here, although I'm not sure on the desired behavior.
 So, I can confirm this bug if it really is a bug :/

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040614 Firefox/0.9

Comment 2

[shadytrees]

This is the desired Windows-like behavior. Case in point is Internet Explorer.
--> Invalid/Wontfix

Comment 3

[Jeff Schiller]

hao2lian:  No.  Firefox does not exhibit the same behavior as IE.  If I
middle-click to start scrolling in IE, then move my mouse cursor out of the
window and release the middle-button, the scroll-cursor is removed and the
regular mouse cursor is restored.  Do the same thing in Firefox and the cursor
stays as a scroll cursor even when no buttons are down.

Comment 4

[shadytrees]

In that case, I can confirm this bug. Mozilla/5.0 (Windows; U; Windows NT 5.1;
en-US; rv:1.7) Gecko/20040624 Firefox/0.9

Comment 5

[David Balažic]

Same on v0.9.2 /  Windows 2000 Pro

Comment 6

[Gavin Chappell]

Same with 0.9.1, 0.9.2, 0.9.3 all on Windows XP SP1 + all critical patches.

Comment 7

[jack]

This problem surfaced on a more recent build (.8 or .9?), seems like the code
for intentionally changed (couldn't imagine this to be a side-effect). Why I
don't know, but it would be nice if there was at least an option.

Comment 8

[Gavin Chappell]

Still the same with 1.0PR, and still just as annoying. I don't know why this
piece of code changed, I can't imagine anyone possibly preferring this new
behaviour, it's too damn irritating!

:-)

Comment 9

[Jim Wood]

(In reply to comment #8)
same here, difference is(after activate the auto-scorolling) when cursor out of
active window(IE) it still can control
the auto-scrolling,(up or down or click any button will terminate the
auto-scrolling), not with 0.9.3. I assume 1. OPR do the same.

Comment 10

[:Gavin Sharp [email: [e-mail]]]

*** Bug 261501 has been marked as a duplicate of this bug. ***

Comment 11

[David Balažic]

Bug still there in FF v1.0

Comment 12

[David Balažic]

Bug still there in FF v1.5

Comment 13

[David Balažic]

Bug still there in FF v2.0

Comment 14

[David Balažic]

Bug still there in FF v3.0

Comment 15

[Mike Conley (:mconley) (:⚙️)]

Can not reproduce this bug with the latest Nightly on Windows, OSX or Ubuntu.