Имя файла: addon-412206-latest.xpi?src=cb-dl-created
The main purpose of this addon is to speed up web browsing by requesting the mobile version of the webpage. It is a quick and easy way to switch between mobile and regular browsing. It also gives webpages simpler userface. (Although not every website has a mobile version of their website.)
Handy for web developers who want to see what their site will look like mobilely.