Rated 5 out of 5 stars
I can't fault it so far. And the later version is faster (or is Aurora getting faster?). Note: I revised my comments following Jeremy's updates.
Ensure you are up to date. It stopped working with the Arora 23.0 version, I had to upgrade to TiddlyFox 1.0alpha3.
The latest version of TiddlyFox fixes this - you can download it from https://github.com/TiddlyWiki/TiddlyFox/raw/master/tiddlyfox.xpi