288066 - New Powerbook G4 two-fingered trackpad scrolling causes pages to move Forward/Back

Status: RESOLVED DUPLICATE of bug 282140

(Firefox :: General, defect)

Description

[melted]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

This problem is specific to the new Powerbook G4 laptops that support
two-fingered trackpad scrolling.

When scrolling down or up a web page using the two-fingered trackpad scrolling,
Firefox will go Back or Forward to the previous or next webpage, instead of
scrolling down or up the existing page.

Trackpad scrolling is not something I wish to disable for browsing due to RSI
issues.

Mac OS X 10.3.8, Firefox 1.0.2, PowerBook G4 purchased new March 2005

Reproducible: Always

Steps to Reproduce:
1. Enable trackpad scrolling on the G4. System Preference -> Keyboard & Mouse ->
Trackpad -> Trackpad Gestures -> Use two fingers to scroll
2. Load any pages in firefox. Examples used were www.cbc.ca/news, www.cnn.com,
www.sfgate.com. Load a few pages so there are places to go Forward and Back in
the history.
3. Scroll up or down a page using two fingered scrolling on the trackpad

Actual Results:  
Instead of scrolling up and down the existing page, Firefox jumped backwards or
forwards in the page history. Jumping seemed related to when top or bottom of
page was reached. E.G. scrolling worked properly until bottom of page was
reached, after which page would jump to a different page in the history

Expected Results:  
Browser should have stayed on the existing page, and scrolled properly, stopping
at bottom or top of page when reached

This problem is specific to two-fingered trackpad scrolling on Powerbook G4s, as
far as I can tell. Maybe related to keyboard shortcuts shift-scrollup and
shift-scrolldown (which go Forward and Back)?

I've chosing to make it a Major problem, as trackpad scrolling is a major RSI
feature for me on the Powerbook, so disabling it is not an option. Feel free to
disagree. The browser is almost unusable with trackpad scrolling turned on.

Comment 1

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

*** This bug has been marked as a duplicate of 282140 ***