Review for User Agent Switcher by Jack Toering
Rated 1 out of 5 stars
It installs displaying browsers I don't have. Has an add dialog box, but no way to browse and add. Talks about import and exporting profiles for browsers so you can import them. Uninstalled. Web Developer by the same author is my favorite add-on. What a surprise this was.
This review is for a previous version of the add-on (0.6.11).To create your own collections, you must have a Mozilla Add-ons account.