Firefox interferes with Shift+Control+Command+4 which should give me a drag icon to copy an area of a webpage. Sometimes it works and sometimes Firefox prevents me from selecting a part of the page to copy and instead opens up a new tab. I don't want a new tab, I want to make a copy of part of a page. How can I disable that "New tab" function so that I can make a copy of part of my screen? Sometimes I have to resort to doing Shift+Control+Command+3 and making a copy of the whole screen, then putting that in an email so I can make a copy of just the portion that I wanted from the page. I am considering switching to SAFARI as my default browser because this makes me so mad.