Default Folder X 5.1.8 is available. For High Sierra users, it works around a macOS bug where file dialogs in apps built with Apple’s Carbon APIs don’t supply all the information that Default Folder X needs. This results in Default Folder X not being able to “see” the selected item in Open or Save dialogs in Firefox, Adobe CS6 (and earlier), MS Office 2011, and many older applications. This bug was supposed to be fixed in the High Sierra 10.13.1 update, but it doesn’t look like that’s going to happen, so I’ve come up with a workaround so Default Folder X works correctly anyway.
Version 5.1.8 also fixes several bugs in Default Folder X itself, as well as providing better feedback when you add an item to Default Folder X’s exception list in its preferences.
For download links and a full list of changes, see the Default Folder X Release Page.