Utilu Mozilla Firefox Collection

Utilu Mozilla Firefox Collection is a fairly effective tool for webmasters. The concept is simple: launch Utilu to check the display of a page through a version of Firefox of your choice, in order to control its behavior. From Firefox 2.0 to the last Nightly, users can, on request, check the way their page is maintained on different versions of the browser, independent of each other.

UMFC is therefore a tool that is of interest to webmasters and integrators who still need to control the performance of their code in different environments. This is to be combined with other browser verification systems under Chrome or IE for example, but also testing tools for mobile or responsive sites that are often a headache.