1863992 - Textarea focus remains when switching to new textarea element

Status: UNCONFIRMED

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[krcowles29]

Attachment: FireFox.html

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/119.0

Steps to reproduce:

Using simple html file attached, enter a negative number into the leftmost textarea. Tab or click to a second textarea element. Alert will appear. Click 'OK'. Tab or click to a third textarea without having entered any data in second element. User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/119.0

Actual results:

After clicking 'OK' and tabbing/clicking to a third textarea, focus remains in second textarea and is also in third textarea - i.e. focus is in two textareas simultaneously.
Note: this is always repeatable, and tested in a new profile as well but not in beta. I did not see a similar issue in bugzilla. This anomaly is not seen on other browsers. Changing 'focusout' to 'change' in javascript makes no difference.

Expected results:

When tabbing or clicking to a new element, focus should always leave the old element and move to the new element.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::DOM: UI Events & Focus Handling' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.