When you double-click JPEG files in Adobe Bridge, nothing happens or the files open with an application other than Photoshop.
Scroll to the JPEG file type and choose Photoshop from the pop-up menu.
If Photoshop is not in the pop-up menu, choose Browse, navigate to the Photoshop application, and then click Open.
Note: This solution sets up Photoshop to open JPEG files in Adobe Bridge. It does not set up Photoshop to open up JPEG files system-wide.