1897892 - Firefox headless is slow under Apple Silicon Virtualization

Status: RESOLVED DUPLICATE of bug 1893921

(Core :: Widget: Cocoa, defect, P5)

Description

[Andrey Lushnikov]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Steps to reproduce:

The following command takes 5+ seconds on Apple Silicon with Virtualization:

time firefox --headless --screenshot /tmp/foo.png about:blank

This is prominent on the new Github Action macos-14 runners that are Apple Silicon VM's.

See the repro on GitHub actions here: https://github.com/aslushnikov/macos-14-firefox-super-slow

Actual results:

The command takes 5+ seconds.

Expected results:

The command should be nearly instant.

Comment 1

[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 2

[Julian Descottes [:jdescottes]]

Looks like this wasn't triaged. Don't hesitate to reach out to us on #webdriver in Matrix if you need help with similar issues.
In this case I think this is a duplicated from Bug 1893921