Rated 5 out of 5 stars

Really not much to say. Works as advertised. Makes Thunderbird so much more useful in my company environment, where normally Outlook is the standard email client. In particular having a good HTML export is so much more useful.

Still, I have three suggestions however.

First allow for the optional specification of a CSS stylesheet. Currently, after exporting I'm opening the index.html file with an editor and include something like '<link rel="stylesheet" href="style.css"></link>'. Therefore it would be really nice to have an additional text field to specify the "style.css" in my example. Then I would only have to copy an appropriate CSS file into the export directory for visually pimping the HTML index view. Or perhaps even include the main table within an additional <div class=""></div>, then users could uses http://www.csstablegenerator.com/ to add their own design.

Second, another text field for supplying a custom title for the HTML output. I'm frequently using this extension to export a particular thread of email messages to document a message exchange for instance between a customer and my company about a particular topic. Therefore I would it would really nice to specify a title like "Discussion with customer yyyy about topic xxxx" instead of only a "Export of Messages".

And my last suggestion would be to allow the export of selected messages into a directory with an index.html file. Basically the same as exporting a complete folder with attachements but only for the selected messages. Currently I'm using an empty scratch mail folder into which I'm copying the messages and then export the folder. Apologies, this feature is already there, but I couldn't find it.

Again, thanks for this great Add-On.

This review is for a previous version of the add-on (2.8.0.4).