I have noticed that the new version of Messenger has introduced a lot of internal changes.
Indeed not all functionality is compatible with the new version.
I will try to make some updates and tests during the next week(s).
Do not worry, your favorite script will be fully functional before you know it
Regards,
TazDevil
Window Manager is discontinued, for WLM try the new, Enhancer for contact list docking, auto-hide, hide taskbar button, remove button flashing and remember keyboard layout in conversation windows
Messenger Plus! Live Enhancer
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