I want to open and use themeler in firefox browser, however when i try to do so i get a pop up that says 'Only Chrome, Firefox and Safari are supported (Windows and Mac).' What can i do about this...

Can I change the browser which runs on the Windows 10 version of Chrome for Firefox, how to do it?

I used Chrome to start re-develop my site, as the Themler template had some clashes with other templates and modules/ plugins. I've been struggling for about 5 hours JUST ON THE HOMEPAGE, and now get...