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Firefox for Windows hangs when I copy text, either by Ctrl+X, Ctrl+C or by using a right-click menu. The browser just stops responding. It doesn't crash. Eventually, it will return and behave normally.

I tried removing all extensions and closing all open tabs. No change. I'm out of ideas. I suspect it may be trying to synchronize with something it can't find or there's network latency. Task Manager shows it's using a lot of resources. It doesn't do it every time, just often enough to be frustrating.

Windows Specifications: Edition Windows 11 Pro Version 22H2 Installed on ‎5/‎14/‎2022 OS build 22622.598 Experience Windows Feature Experience Pack 1000.22634.1000.0

Hello,

I've recently encountered a curious issue with my Firefox browser (Firefox version 102.0, Windows 11 Insider Preview 10.0.25145.1011). At seemingly random times it will freeze for between two and five minutes (roughly). UI elements become completely unresponsive and the cursor does not update when moving over the browser window. The window will not minimize. Yet, Windows Task Manager does not report the application as being unresponsive. While never a common problem, any freezes in the past would eventually cause the Windows Task Manager to identify it as unresponsive.

I have disabled "recommended performance settings" and hardware acceleration to no avail. Everything seems perfectly normal immediately before and after the freezes, and I've yet to identify how I can trigger them. I do not recall having made any changes to my browser before the freezes started occurring, though multiple Windows updates have taken place since then. If I'm too impatient to wait I will end the Firefox processes via Windows Task Manager and restart it so I can return to my tabs without having cookies deleted. I have 13 plugins mainly covering privacy/security concerns. Is there some sort of debug tool I can engage to see what's occupying Firefox while it's frozen? I've just found the Firefox Task Manager, and will see if it can offer any additional information during/after the freezes.

Thanks, Logan

Over the past few weeks, any time I copy a link, whether it's an email address or a URL, from within any page while using Firefox, FF will freeze? Pause? not respond.. for 5 - 15 seconds. I've not done a reset yet.. Windows 11, 16GB RAM, 2GB Video, religiously updated and maintained laptop

I've tried refreshing and using it with zero addons. At the moment it seems to be freezing after I copy things from a textarea. It started freezing just after the Windows update... core isolation is OFF (laptop doesn't support it)... Firefox is at the latest version too.

As of a few days ago it seems that every time that I try to copy some text and then switch tabs Firefox will just completely lock up on me. This is happening on two different systems of mine.