I tried on Debian Testing 11 running Wayland with Firefox Developer running in Wayland mode and didn't experience the freeze. I also tried with Firefox running in X11 mode (Xwayland) on Wayland and didn't notice any difference. Wayland mode can be enabled with the `MOZ_ENABLE_WAYLAND` env variable and X11 mode can be forced with `GDK_BACKEND=x11`.
Bug 1625442 Comment 4 Edit History
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I tried on Debian Testing 11 running Wayland with Firefox Developer running in Wayland mode and didn't experience the freeze. I also tried with Firefox running in X11 mode (Xwayland) on Wayland and didn't notice any difference. Wayland mode can be enabled with the `MOZ_ENABLE_WAYLAND` env variable and X11 mode can be forced with `GDK_BACKEND=x11`. `Window Protocol` can be checked in `about:support`.