Comment by noduerme

MacOS allows you to "hard click" (long click) a text selection in any application, which pops up a bubble that lets you do a web search for that phrase. But the search only launches Safari. I wasted at least a couple hours scouring boards and kext files, screwing with automation macros, trying to find a way to make this potentially helpful shortcut not open Safari, but instead open Firefox. Eventually I just gave up. Apple buried the decision so deep in the OS that it's basically impossible to change the default browser for search.