Why the button ALLOW is missing from the 'Security and Privacy' dialog box

Ok, to control click is to hit the Control key on the keyboard and click your mouse at the same time (o right click on your mouse). So, you first highlight the app icon and then control click.

If you do want to try Terminal, that app is in your Utilities folder inside your Applications folder. Launch that and please note: you have to type (or copy and paste) this command exactly including the dashes:

sudo spctl --master-disable

After that is done, quit Terminal and open again the Privacy & Security Pane; unlock it with your admin password and the anywhere option should be there. I would NOT recommend leaving that option ticked - once you've gotten Dropbox, put it back to appstore & developers. It is safer.

If the Button still does not show up...

With SIP Disabled, you might have to...

• REVEAL the “Anywhere” radio button, enter this in Terminal:

sudo spctl --master-disable

• Run the App
• HIDE the “Anywhere” radio button, enter this into the Terminal:

sudo spctl --master-enable

[Edited by Moderator]

From the experience I have had with the "Allow" button, it only shows up for apps that require you to use it to open them, like "Dropbox, Inc." in your case. The "Allow" button is not there any other time. At least it isn't for me.

I guess I’m not understanding what’s going on here. Installing Dropbox should not require ANY of this as they are an identified developer. My previous posts were deleted without explanation by admins. Very strange

It is a new security feature as many unchecked downloads may contain malware, adware, or other things you do not want. You can try to control click on the .dmg of the app and then choose open.