1691209 - Webpage moving abnormally when touching anywhere while scroll to hide toolbar is turned on

Status: RESOLVED FIXED

(Core :: Panning and Zooming, defect)

Description

[[e-mail]]

User Agent: Mozilla/5.0 (Android 10; Mobile; rv:85.0) Gecko/85.0 Firefox/85.0

Steps to reproduce:

When we touch anywhere on webpage while the scroll to hide toolbar is on, the entire webpage move up and down

Iam on latest version of firefox for Android (85.1.1)

Actual results:

Along while hiding the toolbar, it causes inability to touch or select an option ( Example: Filling a CAPTCHA form ).
It also creates an empty space on bottom.

There is no problem if the scroll to hide toolbar is turned off in customisation

Expected results:

The webpage should not move while selecting anything

Comment 1

[[e-mail]]

This happens mostly on mega.nz (https://mega.nz/)

Comment 2

[Hiroyuki Ikezoe (:hiro)]

This is definitely related to dynamic toolbar. Can someone attach a test case to reproduce this issue?

Comment 3

[[e-mail]]

(In reply to Hiroyuki Ikezoe (:hiro) from comment #2)

This is definitely related to dynamic toolbar. Can someone attach a test case to reproduce this issue?

Go to https://mega.nz after turning on 'hide toolbar on swiping down' and click anywhere on screen. Then it will start to move up and down.
Same when filling a CAPTCHA

Comment 4

[Hiroyuki Ikezoe (:hiro)]

So, it means reproducing this issue requires an account on the site? I don't have any account on the service, and when I go to mega.nz it's redirected to mega.io.

Comment 5

[[e-mail]]

(In reply to Hiroyuki Ikezoe (:hiro) from comment #4)

So, it means reproducing this issue requires an account on the site? I don't have any account on the service, and when I go to mega.nz it's redirected to mega.io.

No. No account is needed. Just tap anywhere while it is showing its logo when loading

Or Try to fill a CAPTCHA with images after turning on that setting for hiding toolbar while scrolling

I think this problem occurs only on some webpages while others are okey

Anyway turning off that setting fixed my probl

Comment 6

[madnew]

I have the exact same issue with page scrolling down when the dynamic toolbar option is enabled. It happens on any website in my case . This issue seems to be only in Nightly and Beta.

Comment 7

[Hiroyuki Ikezoe (:hiro)]

madnew, can you please post the links for websites? I am not still able to reproduce the issue on mega.io.

Comment 8

[madnew]

Sorry for long response time. This bug appears on any website for me. Here small video i recorded https://youtu.be/KBPon-XoD_I

Comment 9

[Hiroyuki Ikezoe (:hiro)]

It's quite hard to tell what's going on there, it looks like device specific.
madnew, what's the device you are using? Also I am wondering whether your finger keeps touching the screen during scrolling.

Comment 10

[madnew]

It happens when my finger is touches screen and makes short but frequent scrolling down. If i make a strength scrolling and then immediately lift up my finger - all is OK. I don't know but it looks like sensor sensitivity issue in the app.
My device: OnePlus 3T (A3010), Android 9 (OxygenOS 9.0.6).

Comment 11

[Botond Ballo [:botond]]

I wonder if the issue has to do with the interaction between momentum scrolling and dynamic toolbar movement. I know we've had issues around that before, and their fixes may not have been ported to the GeckoView implementation.

Comment 12

[Botond Ballo [:botond]]

(I'm thinking of bug 1257959, bug 1499941, and similar.)

Comment 13

[madnew]

Fixed!

Comment 14

[Hiroyuki Ikezoe (:hiro)]

Thanks!

Closing I am unsure which fixed this issue though. Please feel free to re-open this or open a new bug if you see this issue again.