Works, but interface too simple. And I would really like a way to edit the epubs.
Please add a Table content navigation, in a sidebar.

Does what it says, would be nice if you could drag the epub file into a dropzone to open it with the plugin other wise would recommend this

nice reader

page deformée - ne fonctionne pas

This extension doesn't do anything. You click on epub link and firefox still wants to download it. Plus most epub sources have web reading option.

cant poen epub files :C

Very nice addon, renders books beautifully.
The only problem for me is that it doesn't render the font colors (i unzipped the epub and opened some of the files in browser, colors are there). I use this addon to read ebooks with a lot of formatted code, but without highlighting code listings are harder to process. So I would be very glad if this problem is fixed.

Does not support PgUp/PgDn/Home/End keys, and search is not well implemented.