1779500 - On the latest Windows 11 insider build (Beta Channel), Firefox freezes on doing things related to the clipboard.

Status: RESOLVED DUPLICATE of bug 1774285

(Core :: Performance, defect)

Description

[u710056]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0

Steps to reproduce:

There are multiple ways to reproduce, but they only work in Windows 11 22622. They will also only freeze for a few seconds:

1. Copying a CSS selector from Dev Tools
2. Go to any website with elements on the page.
3. Use the element picker, and right click the element > Copy > CSS Selector
4. Firefox will freeze.
5. Copying text from a PDF
6. Open a PDF.
7. Copy some text in the PDF.
8. Firefox will freeze.
9. Cutting text from a textarea
10. Go to a site with a textarea that has text in it.
11. Cut some text in it and quickly paste.
12. Firefox will freeze.

Actual results:

Firefox freezes when copying or cutting text for a few seconds.

Expected results:

Firefox should not freeze on copying or cutting text.

Comment 1

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

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