V.3.5.23 of this plugin is great, however, Mozilla have screwed it by removing functionality that is required to keep it as great as it is.

As a result, we end up with a s**tty Chrome standard plugin that doesn't even work for me at the moment; none of my accounts work, they don't fetch mail and just show up in red even after having to readd them to the v4 of the program, at all (and I had six of them to readd.)

Chrome extensions are the lowest common denominator when it comes to plug ins and so are not what Mozilla should be aiming for and they should not be forcing their loyal plugin developers to remove useful functionality from their plugins just because they can't be ar*ed to develop a proper solution to allow the plugin to work as it did (functionally.)

As you can see, I don't fault Byungwook here, I fault the lazy f**ktard developers and/or pathetic leadership at Mozilla.
However, I have to rate the plugin how it is now at v4 and so I've had to rate it at 2* rather than 4* that v3.5.23 would receive.