Review for Remote Content By Folder by Clint Priest
Rated 5 out of 5 stars
This is a great add-on and hats-off to allowing expressive regular expressions. The last reviewer giving you 1 star because he can't be bothered to take a 5 minute tutorial that covers 90% of the use cases for regex is churlish.
I wish more extensions allowed regex (PCRE FTW)
To create your own collections, you must have a Mozilla Add-ons account.