''<p>test672upload [[#question-1333433|said]]</p>'' <blockquote>So I'm on mac. When I tried to open an svg with preview, I found this. I don't know what it is for but I just clicked on it. But then it lead me to a popup saying "Firefox downloaded this app (Updated.app) from an unknown date", is that any good? I clicked cancel because I thought it would crash or break my system or app. </blockquote> I got some info, i think its some sort or app that works for update firefox to start, I guess? (The info I got from was here at https://support.mozilla.org/en-US/questions/1348692)