@Artoo
Please edit your Original Post (“OP”) above, in order to include:
- Brave Browser version numbers (see how to retrieve in following lines)
- MacOS version numbers
Your current Brave Browser version can be found, by entering the following command in a Terminal.app window:
cat "/Applications/Brave Browser.app/Contents/Resources/en.lproj/InfoPlist.strings" | egrep CFBundleGetInfoString
The shell script that you wrote, is an AppleScript command. Entering the command in a Terminal.app window, the command would be:
open -a "/Applications/Brave Browser.app" --args --incognito
You should be able to adjust Brave Browser Settings while using Private Browsing (“incognito” ie Private Windows), but I suspect, that after an unknown number of Brave Browser updates, a fresh start is necessary.
By fresh start, I mean a complete purge of Brave Browser software on your Mac. Of course, doing that AFTER securing backups of bookmarks and passwords (if you use the browser’s Password Manager).
If Brave Browser is set to be the default Internet browser, then pick another browser.
If Brave Sync has been used ← Disable it.
Where Brave Browser has usually been installed on the Mac:
/Applications/Brave Browser.app
/Users/username/Library/Application Support/BraveSoftware/
/Users/username/Library/Application Support/CrashReporter/Brave Browser ... .plist
/Users/username/Library/BraveSoftware/
/Users/username/Library/Caches/BraveSoftware/
/Users/username/Library/Caches/com.brave.Browser/
/Users/username/Library/Logs/DiagnosticReports/Brave Browser ... .crash
/Users/username/Library/Preferences/com.brave.Browser.plist
/Users/username/Library/Saved Application State/com.brave.Browser.savedState/
And the “Brave Browser … .diag” reports within:
/Library/Logs/DiagnosticReports/
You might not find:
/Users/username/Library/BraveSoftware
. . . do not worry about that.
. . . and following the purge, a fresh installation of Brave Browser.
That is, if you believe necessary. There is some possibility, that the permissions for:
/Users/username/Library/Application Support/BraveSoftware (or somewhere therein that folder; or, in some other location) . . . have been altered and need to be fixed.