1931814 - [a11y] Touch exploration with TalkBack stops working when scrolling

Status: UNCONFIRMED

(Core :: Disability Access APIs, defect)

Description

[imjs2024]

Attachment: firefox134-nightly-talkback.mp4

I created this bug as a clone of https://bugzilla.mozilla.org/show_bug.cgi?id=1907247. It mentions the fix reached Firefox Nightly. Based on the revision: https://hg.mozilla.org/mozilla-central/rev/718887ce7d31, I understand that it reached Nightly on 10/31. However, I am still able to reproduce the bug reported on a Tablet using the Desktop view of the websites using Nightly with a build from November.

Steps to reproduce

1. On a tablet, open Firefox with TalkBack enabled.
2. Search for something, I chose wikipedia in the attached file.
3. Make sure to have the desktop version enabled.
4. Explore the page with Touch exploration. Do not scroll the view. Notice that everything works normally.
5. Scroll to the bottom of the page and try touch exploration again. Notice that TalkBack doesn't focus any element in the web view.
6. Use TalkBack navigation gestures to explore the page. Notice that elements which aren't focusable with Touch exploration can be reached when using navigation gestures.

Expected behavior

Touch exploration doesn't work for content that needs scroll to be reached.

Actual behavior

Touch exploration should work always.

Device information

• Firefox version:Firefox Nightly 134.0a1 from 2024-11-09T12:24:13.910618560. Build #2016055143
• Tablet Android device model: Samsung Galaxy Tab A9+, model SM-X210
• Android OS version: Android 14.

Any additional information?

• TalkBack version 13.5.00.9

Comment 1

[James Teh [:Jamie]]

NI eeejay to take a look at this when he gets back from leave.

Comment 2

[Diego Ramírez [:BlindMoon38]]

Can confirm it happens also in sites without mobile design, no Desktop version needed. Firefox Translations Models is a good example, since it shows that the content accessible through touch exploration scrolls a little, but doesn't follow the visible content when scrolled to the bottom of the page.

Comment 3

[James Teh [:Jamie]]

S2 for now given that this breaks explore by touch.