1795960 - On its own, Firefox scrolls down my facebook feed. Too rapidly for me to even read anything. I can't stop it even if my mouse is on the scroll bar.

Status: RESOLVED INCOMPLETE

(Core :: Panning and Zooming, defect)

Description

[Linda Carroll]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0

Steps to reproduce:

Used the scroll bar to go down to next entry in my Facebook feed.

Actual results:

The scrolling just took off bypassing a dozen or so entries. No way to stop it even if I had my mouse sitting on the bar. Every time I have to scroll back up. Time consuming and irritating.

Expected results:

The scrolling should be controlled by me. It isn't.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Panning and Zooming' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[Timothy Nikkel (:tnikkel)]

So the page scrolls down much more than you want every time you use the scrollbar to scroll? Or it scrolls without any interaction from you? Is there anyway you might be able to provide a video or screen capture of the problem in action?

Comment 3

[Linda Carroll]

It will be ok for maybe 5-10 posts on my timeline and then it just takes off. No clear reason why. I'll be just scrolling along pausing to read what I find interesting and then try to look at what else is there and suddenly it's gone past another 10 or more posts. I can't really get a video because it happens so fast and so unpredictably. But it definitely happens every time I start reading posts on Facebook. And often multiple times.

Comment 4

[Linda Carroll]

And it doesn't matter if I'm using the thingie on the bottom of the scroll bar to go a little bit at a time or if I grab the scroll bar and pull it along. Suddenly posts are flying by.

Comment 5

[Botond Ballo [:botond]]

It sounds like this may be a combination of two issues:

1. Bug 1779404, a widely reported issue specific to Facebook where the scroll position in the Facebook feed jumps unexpectedly. While we're not 100% sure of its cause, it may be partially caused by a Firefox bug (bug 1789930) which has been fixed in Firefox 106, whose release is being rolled out this week. The remaining issue may be on the Facebook side, as users have reported it with other browsers as well.

2. Bug 1756814, a Firefox issue with scrollbar dragging where, if the page dynamically loads new content (as the Facebook feed does) while you're dragging the scrollbar, then the scroll position jumps to take into account the increased page length, rather than keeping what you were looking at on screen. This issue is on our roadmap to be fixed in the coming months.

Comment 6

[BugBot [:suhaib / :marco/ :calixte]]

The severity field is not set for this bug.
:botond, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 7

[Dan Robertson (:dlrobertson)]

Setting the severity to S3 since there are likely other bugs tracking this.

Comment 8

[Botond Ballo [:botond]]

Thanks. We can check back on this once bug 1756814 is fixed.

Comment 9

[Botond Ballo [:botond]]

Linda, do you still experience this in recent Firefox versions?

Bug 1756814 has been fixed since Firefox 116, and fixes related to bug 1779404 have been made in various Firefox versions from 115 to 125.

Comment 10

[BugBot [:suhaib / :marco/ :calixte]]

Redirect a needinfo that is pending on an inactive user to the triage owner.
:botond, since the bug has recent activity, could you please find another way to get the information or close the bug as INCOMPLETE if it is not actionable?

For more information, please visit BugBot documentation.

Comment 11

[Botond Ballo [:botond]]

Closing as INCOMPLETE for now. Please feel free to reopen if you're still experiencing this.