Unknown error; quitting application

This is probably an unknown error because many (I, for one) cannot replicate it.

There must be something else taking place and/or causing the issue. I'm not saying that you are not having a problem, it's just that I do not think the Bridge is the cause of it.

Do you have a test user account on your Mac? If not, it's easy to create; you go into Users in System Preferences and create a new user. I call mine "Testme." and I also use the same Account Password as my regular account (just to make things simple for me). Do not add ANY software to the startup lists; keep this as simple as possible. (Do have your Adobe Account name & PW handy if you need them available in this account.)

Now, start up with this account. Does Bridge work? If not, that means that there is no software conflict. If yes, it means there is something else causing the problem. This can be a challenge to figure out what the issue is.

Other things you can try: Start up your Mac in Safe Mode. (Start up your Mac in safe mode - Apple Supporthttps://support.apple.com › guide › mac-help › mac) This test will also let you rule out some basics.