1949713 - Firefox returns wrong AX Element positions on macOS on second monitors with high resolution

Status: UNCONFIRMED

(Core :: Widget: Cocoa, defect, P3)

Description

[guill.bout]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Safari/605.1.15

Steps to reproduce:

ping Firefox AX UI Elements when using multiple monitors, with second monitor using a high resolution.

Actual results:

the AX UI Elements positions returned by Firefox is wrong. on single monitor they're right. on second monitor using a low resolution they are right too. but on second monitor using a high resolution, they are wrong.

Expected results:

Firefox should have returned the correct positions of the AX UI Elements even on second monitor with high resolutions.

attaching a video showing the issue.

Comment 1

[guill.bout]

video was too heavy for upload. attaching a public dropbox link here where you can view the issue: https://www.dropbox.com/scl/fi/3uovae6awk8v5lh2cyp5p/firefox-ax-issue.mp4?rlkey=aq8rhiwwa4hlgangvnu59ugr0&dl=0

Comment 2

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

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

Comment 3

[harry]

+1 experiencing the same issue under the same circumstance

Comment 4

[Luca Barrett]

+1 also experiencing the same issue under these circumstances. Would appreciate attention as this has effects on my disability access software

Comment 5

[Alex MacLeod]

+1 same issue under same circumstance.

Comment 6

[bruno]

+1 same issue under same circumstances