Indeed, and this appears to be a GTK bug (https://gitlab.gnome.org/GNOME/gtk/-/issues/4340), for which a fix was merged a week ago.
For reference, the upstream firefox bug was https://bugzilla.mozilla.org/show_bug.cgi?id=1722369. ** Also affects: gtk+3.0 (Ubuntu) Importance: Undecided Status: New ** Bug watch added: gitlab.gnome.org/GNOME/gtk/-/issues #4340 https://gitlab.gnome.org/GNOME/gtk/-/issues/4340 ** Also affects: gtk via https://gitlab.gnome.org/GNOME/gtk/-/issues/4340 Importance: Unknown Status: Unknown ** Changed in: firefox (Ubuntu) Status: Confirmed => Invalid ** Bug watch added: Mozilla Bugzilla #1722369 https://bugzilla.mozilla.org/show_bug.cgi?id=1722369 ** Tags added: rls-jj-incoming -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1913775 Title: Copy from Firefox Wayland fails to be pasted anywhere else To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/1913775/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs