Rated 5 out of 5 stars

Blocked attachments do not open, but it is possible to save them, and subsequently open separately from thunderbird. There is not enough function to completely block prohibited attachments, without the possibility of not only opening, but also of saving them.

This review is for a previous version of the add-on (0.7). 

Hello Irshat and thanks a lot for your review.
I thought about blocking all potential malicious content but decided to focus on the open function to prevent especially unexperienced from infecting their computer by a hasty action.
Now, the user has to save the file, navigate to the corresponding directory and open the file manually.
Anyhow, I added this functionality to the todo list. If I find some time, I will try to implement that feature.

Rated 5 out of 5 stars

The best piece of protection against .htm and other attachments that cannot be blocked in the TB existing Filters architecture.
Suggest add in .htm to blocked option, then re-open ThunderBird to activate.

This review is for a previous version of the add-on (0.5). 

Thank you for your feedback. I added *.html and *.htm to the default attachments for warning. Should be available in the next couple of hours.

Rated 5 out of 5 stars

Just what i needed for my company. Tried with filters on incoming messages, but not always work. This way the attachments are blocked or the user can be warned if file is dangerous to open or not, or why the file are blocked. Extensions are configurable and also the warning messages. Very useful. Tnx
PS: I add some extensions to the warning attachments, like 7z, and some others from files from MSOffice with macros enabled.

This review is for a previous version of the add-on (0.4). 

Thank you for your feedback! The list of extension has been adapted in version 0.4:
- The MS *.???x formats were removed. They can not include macros
- The MS *.???m formats were added. They can include macros
- 7z will be added in the next update

If you have other file extensions that should be added, feel free to share them with me