Developer reply by Paul Lammertsma
Rated 5 out of 5 stars
This is one of my must have extensions and the inclusion of a link to "down for everyone" has just made it even better
This review is for a previous version of the add-on (3.3.0).Great to hear it! I'm sure you'll be happy with the next version: it automatically checks if the site is available using two separate auditors.
To create your own collections, you must have a Mozilla Add-ons account.