O.P. RE: How to open group chat windows
Well, I've read the MPL scripting guide and there, it says:
make an ScriptInfo.xml with the other files, then zip it but, change its file extension so it can be interpreted as a MPL script.
I did that, but when trying to install it, Messenger says
"The file you try to load does not appear to be a valid Messenger Plus! script pack."
But the .js script is doing ok, so the problem seems to be how to pack it.
What am I missing??
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