@noelen
I have no simple solution for you.
I hope that you will explore all of the possible directories where you may have - over time - installed 1 or more types of Brave Browser.
IF you can get Brave Nightly running long enough … certainly go to brave://version and look at:
- Executable Path:
- Profile Path:
… in order to at least have that information; and also:
To back up what you may have
Export your bookmarks and passwords:
How to back up Passwords that are stored by Brave Browser
Scrolling down the webpage at:
https://support.brave.com/hc/en-us/articles/360018185951-How-do-I-use-the-built-in-password-manager
A note states:
“Export Passwords - Selecting Download file will export all credentials you’ve saved in your browser as a .CSV file onto your system. Note that anyone who has access to your system will be able to open and view this file, so it is recommended that you delete this file once you’ve used the file for its intended purpose.”
Tips on how to encrypt that .CSV file:
Be sure to safely store a copy of that CSV file on an external drive.
How to back up your Bookmarks as an HTML file
Two ways to get to the Bookmarks Manager.
One way:
- Launch Brave and open the Main menu:

- Select
Bookmarks --> Bookmarks Manager
- Open the More options menu at the top right
- Select
Export and choose where you want to store the exported file.
Another way:
- In a new Brave Browser window, go to:
brave://bookmarks
- Locate the “Organize” (vertically-arrayed 3-dot) menu button in the upper-right area of the window; click on that
- You should get a pop-up menu, in which you click on the “Export bookmarks” selection and choose where you want to store the exported file.
The exported file name: “bookmarks.html”
Be sure to safely store a copy of that HTML file on an external drive.
Next, after Exit / Quit Brave, back up the User Data folders at:
C:\Users\[UserName]\AppData\Local\BraveSoftware\Brave-Browser-Nightly\User Data
C:\Users\[UserName]\AppData\Local\BraveSoftware\Brave-Browser\User Data
Then Thoroughly Un-install Brave Browser
I use the Uninstall Tool developed by CrystalIDEA Software: ‘https://crystalidea.com/uninstall-tool’
Or, you might uninstall the Brave Browser application(s) - procedure at:
‘Every time I open the browser it closes again directly - #20 by clifton’
Be sure to uninstall the Brave Browser updater, BraveUpdate.exe - procedure at:
‘Have to re-install Brave multiple times per day on Windows11 - #24 by mherrmann’
Of course, Exit / Quit everything and restart the computer during the proceedings; esp. restart whenever in doubt.
AFTER thoroughly removing all Brave Browser installations, make a fresh Brave Nightly installation by using Brave’s suggested link: ‘https://brave.com/download-nightly/’
Because, that is your best chance to maintain Brave Nightly’s expected updating procedures.
Where you want to deviate from all that, is your decision. But I figure that your custom of simply making select file and folder changes, is going to run off the rails.
BECAUSE: Brave updating runs a variety of integrity checks that include the Local State file ← that itself, is changed by some updates … and at some point in time, your customization will not pass muster, and then the new Local State file will be forced, and “just like that,” you will have trouble.
Meanwhile, remaining on course, you could also make …
–
A Brave Browser Shortcut [target] for startup, that initializes a fresh Brave Browser User Data structure in a temporary folder named “BraveTemp01”:
"C:\Program Files\BraveSoftware\Brave-Browser-Nightly\Application\brave.exe" --user-data-dir="%TEMP%\BraveTemp01"
Note: That temporary folder named “BraveTemp01” will last until you clear %TEMP%
Note: %TEMP% is a Windows OS environment variable pointing to your Windows OS user account’s temp folder. Location: C:\Users\[UserName]\AppData\Local\Temp
–
You can also use an external USB drive, let’s say that you make that the "X:\" drive for your machine. Then use a new Brave Shortcut [target] for your “portable” in effect:
"C:\Program Files\BraveSoftware\Brave-Browser-Nightly\Application\brave.exe" --user-data-dir="X:\BravePortable"
Note: That will initialize a fresh Brave Browser User Data structure in directory "X:\BravePortable"
That could be your “portable” data for safe-keeping.