hmm, did you try putting the tiddlywiki file itself on documents or desktop and try saving?
Do not worry about the initial "Not a local tiddlywiki file" message. I have set the plugin to check the url of the tabs in the browser and if it does not start with "file:///", do not load the plugin at all. This way the plugin is more privacy friendly as it will be blind to all your internet browsing. Initially when you open firefox, your url bar must be either empty or showing something like "about:blank". Since both of these do not conform to the url match pattern, the plugin initially disconnects the port. Now when you load a local TW5, it rechecks the url first. Once it determines it is a local file and not an internet address, it checks if the file is actually a tiddlywiki. If both conditions are met, then a new port is opened and you can see it in console log with the message "Initiate". -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/99b08501-b1af-4d50-8e9a-cebb4f1c2b38%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.