Firefox UserAgent Switcher list
... There are two choices:
Download official useragent switcher xml import file.
Requires user agent switcher 0.6.5 or greater. Download the useragent switcher xml file here. This is the most upto date version, we recommend you use this one.
Download txt file for your prefs.js file
This version is updated now and then, download the latest version here. ... [full article
"import this xml in your useragent switcher add-on and you will start seeing many mobile models as option to switch" - yamy
Thank you yamy for bookmarking this article!