Works as advertised Rated 4 out of 5 stars

It's simple (nothing's configurable) and gets the job done. The style sheet is fine. And it *can* read local files. So far, so good :)

The only drawback is that tab title is a hard-coded "Markdown Viewer" string. Among all the possibilities I could think of (file path, file name, first line, first title... or a combination of those) that's probably among the less useful.

This review is for a previous version of the add-on (1.3.1-signed).