Rated 4 out of 5 stars

I HAVE FOUND A SHORTCOMING:

It seems Flash can be installed (on v4.0) through a circumvention of this add-on. Is not there a way to block that -- or maybe not?

This review is for a previous version of the add-on (1.09). 

Rated 5 out of 5 stars

Fine, except for the "Could not initialize dlwatch extension" error message popping up using Firefox 4. It seems almost everyone is getting it.

This review is for a previous version of the add-on (1.09). 

Great, although... Rated 4 out of 5 stars

Really great. The only reason why I am not putting a 5 here is I want the author of this product to have a chance to read this review.

This is an essential addon in the prevention of malware. Use * to block all. IT WOULD BE GREAT TO HAVE THE OPTION TO BLOCK ALL *EXCEPT* GIVEN EXTENSIONS, for example, * \pdf -- meaning, block ALL, except PDFs.

Awesome product. Highly recommended.

This review is for a previous version of the add-on (1.09). 

Rated 5 out of 5 stars

works with newest firefox version. block all files with an asterix so that your children stop downloading malware. five stars.

This review is for a previous version of the add-on (1.06). 

Useful security tool Rated 5 out of 5 stars

I can't wait for this to be compatible with Firefox 3!

It would also be nice to have a predefined-list for the blocking of dangerous formats, see link:
http://antivirus.about.com/od/securitytips/a/fileextview.htm

This review is for a previous version of the add-on (1.04).