You can't possibly think that all Firefox and Ubuntu users sit around for 4 minutes waiting for their browser to open. It's clearly something specific to your s

You can't possibly think that all Firefox and Ubuntu users sit around for 4 minutes waiting for their browser to open. It's clearly something specific to your setup. If you want to report this issue I suggest first trying a fresh install of another OS on the same device just to ensure it's not hw. And of course the standard troubleshooting is to start Firefox in troubleshooting mode, that runs it without any plugins enabled.