Where did you get the extension? The latest version is https://github.com/buggyj/tiddlyclip/releases and was released in August of last year.
On Wednesday, May 6, 2020 at 8:36:03 AM UTC-7, Jared Volpe wrote: > > Latest Firefox on the Mac throws an error when I try to install it. It > seems very out of date. Anyone else seeing this issue? -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/a1a5eb5d-456b-4e75-b0ab-807889a93e50%40googlegroups.com.