Illogical organisation of operating systems and browsers. Should be simplified by breaking down the three rows of mobile platforms, browsers, and operating systems to only two rows with the top one being the operating system which includes Windows, Linux, Android, macOS, iOS, etc., etc. The second row would then list the possible browsers for the selected operating system. There is absolutely **no** need for a third row listing mobile platforms as mobile platforms are operating systems! Note also the order of the rows, operating systems should be listed and selected before the browser since the operating system determines the browsers that are available under that operating system. I do hope this gets tidied up in a future version since I wish to use this extension as it is the only one that I can find that exist for both Chrome and Firefox and supports overriding per domain.

In addition there is no "default" option, i.e., an option that returns the real user-agent. This is a must!