Review for Extension List Dumper by RedDwarf
Rated 5 out of 5 stars
I've missed for a long time being able to export a list of extension names so that I know what I had installed. I used to use MR Tech Toolkit which enabled even more options that this extension provides but was quite a lot larger. For a more minimalist extension it does the job well.
To create your own collections, you must have a Mozilla Add-ons account.