Review for Bluhell Firewall by SDavidHicks
Rated 4 out of 5 stars
It's been working well for me for a couple months. Generally it just works and I don't pay much attention. I add my vote for adding a user-customizable exception list if it doesn't interfere with the developer's intent for a lightweight extension.
This review is for a previous version of the add-on (2.0.1-signed).To create your own collections, you must have a Mozilla Add-ons account.