Brave no longer works on MacOS Big Sur?

Description of the issue:

Brave quit, then will not reload. “You can’t open the application “Brave” because this application is not supported on this Mac.” - I have not changed anything on my Mac, nor restarted it.

Steps to Reproduce (add as many as necessary): 1. 2. 3.

  1. Download Brave and try to open it on MacOS Big Sur 11.4

Actual Result (gifs and screenshots are welcome!):



Screen cap.

Reproduces how often:

Every Time

Operating System and Brave Version(See the About Brave page in the main menu):

Latest downloaded version, Big Sur 11.4

Additional Information:

Release Channel shows 2 download sites:

Whichever you have already tried . . . maybe try the other and see what happens.

BEFORE doing that . . .

Quit everything.

Locate the “BraveSoftware” caches folder:


and move that “BraveSoftware” folder to the Trash.

There was no BraveSoftware folder, but a Brave Browser - I deleted that. Downloaded the nightly and it worked.

All bookmarks, settings, everything is gone. Do I assume it’s gone for good? (Put a lot of work into that.)


Uh . . . I only mentioned the caches folder named “BraveSoftware” located here:


and to move that folder named “BraveSoftware” to the Trash (not delete the folder, nor empty the Trash).

Otherwise, I am of course a bit stunned, that the Brave GitHub Repository does NOT(?!) have the stable release version 1.28.105 of Brave Browser, but instead, only “Nightlies?!”

Screen Shot 2021-08-12 at 10.08.26 PM

I was expecting that you would find - at GitHub - what is also at

Screen Shot 2021-08-12 at 10.15.29 PM

Sigh. But, you might rescue the situation, yet.

Possibly you might locate the “Brave Browser” folder that you “deleted” . . . but it is still in the Trash . . . and move that “Brave Browser” folder to your Mac’s Desktop. Possibly?

Please do that, if you can.

And, also, report where you found that folder, originally?

In addition, I suggest that you NOT use the Nightly version that you downloaded and installed.

You will have to wait for Brave Support; while I try to forgive myself for a poor effort and explanation, this evening.

Note to self. The following is the Brave Community [Announcement] “Release Channel” for Brave Browser version 1.28.105

Screen Shot 2021-08-12 at 10.33.10 PM

Generally, “Release Channel” means - the stable release of Brave Browser. For example, over at the Linux link:

Screen Shot 2021-08-12 at 10.35.17 PM

It shows the “Release Channel” and the “Nightly Channel” as two distinct resources. No reason to assume that the “Release Channel” would be a “Nightly Channel” . . . and . . .

At GitHub, where all the dough and batter are mixed together in order to produce the various Brave Software, Inc. products . . . I made the mistake of assuming that “Release” meant RELEASE that the public generally sought.

Nope. My mistake. Ouch. I failed to help community member “tdellaringa”. Bah.

Ok, so I didn’t empty the trash (I’m not totally helpless!) so I pulled the folder back out and have it. I found the RIGHT folder you originally said in caches and put that in the trash. (I’m not sure why I couldn’t find it before).

I downloaded Brave again from here: “”

And I am seeing the same thing:


This is what was in the Brave Browser folder


The release links are a bit confusing but this here:

Has a Beta release from 2 hours ago, which looks like it will install. Should I try that one?


Bless you.

The following is lengthy; please read carefully. Getting familiar with all the locations of the items mentioned, will help you a lot, before you decide to take any steps.

Please Quit all Brave Browser applications.

Where some things are at, using Mac OS X Sierra:

Root: simply a forward slash /

Root and System level folders


The “Brave” application is located:

/Applications/Brave Browser/

There, and hereafter, I am referring to the location of files and folders - assuming that a recent, stable release of Brave Browser is the only installed version. (No Beta’s. No Nightlies.)

Your machine user account folder, aka home folder “your_username_aka_shortname”:


Therein (of interest today):



System Cache files - generally you do not mess with these very often:


On the other hand, your user account “Library” folder and its “Caches” folder:


Generally, therein, you can - after quitting associated/relevant application(s), move your cache files n folders that you select

/Users/your_username_aka_shortname/Library/Caches/< files n folders >

to the Trash. For example, there are (Sierra) two Brave Browser cache directories that could be moved to the Trash, “BraveSoftware” and “com.brave.Browser” (I forgot to mention that 2nd one, “com.brave.Browser”, yesterday):

Screen Shot 2021-08-13 at 9.53.56 AM
Screen Shot 2021-08-13 at 9.55.12 AM

Application Support

System level Application Support:

/Library/Application Support/

Currently (Sierra) - there is no “Brave Browser” type folder therein.

On the other hand, in your user account’s Application Support:

/Users/your_username_aka_shortname/Library/Application Support/

has a Brave Browser folder named “BraveSoftware” therein:

/Users/your_username_aka_shortname/Library/Application Support/BraveSoftware/

And therein, a sub-folder “Brave-Browser”:

/Users/your_username_aka_shortname/Library/Application Support/BraveSoftware/Brave-Browser/

And, therein, several files and folders.

Continuing with that last location and the “several files and folders” . . .

Recently (last few days of this 2nd week of August 2021) there were some temporary fixes / solutions to Brave Browser problems (for some users), where CPU/RAM usage has been high, and/or failure to successfully start Brave Browser (crashes or freezes).

Among the temporary fixes, were TWO that might apply to your situation. So, after Quitting Brave Browser:

ONE: Move to the Trash, all the contents within the “CertificateRevocation” folder (but not the folder itself):

/Users/user_shortname/Library/Application Support/BraveSoftware/Brave-Browser/CertificateRevocation/

TWO: Move to the Trash, the “cffkpbalmllkdoenhmdmpbkajipdjfam” folder:

/Users/user_shortname/Library/Application Support/BraveSoftware/Brave-Browser/cffkpbalmllkdoenhmdmpbkajipdjfam/

Example screenshot of both a) the contents of folder “CertificateRevocation” and b) the “cffkpbalmllkdoenhmdmpbkajipdjfam” folder, currently:

Screen Shot 2021-08-13 at 11.06.38 AM

So, when I first read YOUR original post, I wondered that maybe you need to take a swing at THOSE TWO TEMPORARY FIXES just mentioned . . . AFTER you:

First, Reminder to Quit Brave Browser (including any Beta’s or Nightlies).

Second, un-install whatever Brave Browser applications you may have installed by now.

Third, move to the Trash, the aforementioned cache collections.

Fourth, make sure that for now, you hang on to the “Brave Browser” folder that you rescued - probably you put the folder on your Mac’s Desktop (ie keep it out of the way).

Fifth, Locate the Preferences file “com.brave.Browser.plist” for Brave Browser:


And move that “com.brave.Browser.plist” file to the Trash.

THEN, after all that cleanup, install the latest stable release of Brave Browser.

IF THEN, the latest stable release of Brave Browser will NOT install, you will need Brave Support help, directly.

Because probably a required signature credential for the Installer (or some part thereof), is not correct, or some Bundle Identifier info, is not correct (something like that) - would be my guess.

(PS. Sometimes, the date info, of your computer, might be off enough, such that an installation will not proceed.)

BTW1, you have not said where you originally found the “Brave Browser” folder that you previously moved to the Trash . . . but rescued.

BTW2, I would not install a Beta nor a Nightly, unless a member of the Brave Support Team was guiding and explaining the why of it.

UPDATE: You probably found the mystery “BraveBrowser” folder, here:


If I am not mistaken, that is used when making the original, first-time installation of Brave Browser. Yet I do not know how it may be involved, subsequently.

Whew! Ok, this is a lot, and I really appreciate the help. First things first: I am on Big Sur 11.4, not Sierra. Not sure if that makes a difference, but I am not seeing exactly what you are laying out - specifically - there is no Library folder in my username folder (which only has 1 user, other than Shared, which only has Adobe stuff in it).

So before I move on, is this a problem? This is what I see:


20210814 Saturday Update: Do not be discouraged. It is indeed, a lot; but it will help you get up to speed re the basics of, where things are located on your Mac. That will help to make your maintenance a bit easier.

Computers have instrument panels, and it takes a while to become familiar, and then much longer to gain experience. I am still learning.

Some basics:

  • Routinely back up your Internet browsers’ Bookmarks files

  • Use a 3rd party Password Application for safely storing passwords; that, in addition to backing up passwords, if a browser provides for that

  • Create, and continue to maintain, and organize, a folder structure in which you will store data. Example:

G_government_state (county sub-folders therein)

Starting that and keeping it maintained, will free up space (particularly your Desktop), and you will know where your data is — instead of being at the mercy of some indexing systems invented by the computer software makers.

Ok, I followed all those steps successfully, and restarted, and updated to the latest version of Big Sur 11.5.2.

Downloaded the latest version and was getting the same thing, can’t install. Same thing with the beta. So I poked around in the first links you posted about where to download and downloaded from here:

That download works! - And all my saved bookmarks/links/history are there for some reason, even though my folder is still on my desktop.

I don’t know what is the difference between that release and others I hit, but there you have it.

Thank you so much for your help!



The folder on your Desktop:


is not a folder that contains your bookmarks, etc.

Your Bookmarks (and Bookmarks.bak) and etc. file(s) are probably within the “Default” [profile] folder at:

/Users/your_username_aka_shortname/Library/Application Support/BraveSoftware/Brave-Browser/Default/

-OR- within another profile folder at:

/Users/your_username_aka_shortname/Library/Application Support/BraveSoftware/Brave-Browser/

(I am uncertain as to which profile is active - your preferred.)

On the Mac (again, I am using Sierra), you may Compress (.zip) the “Brave-Browser” folder that is located on your Desktop. The Compress command is under the File menu of the Finder. First, select the folder on your Desktop, and then under File, select Compress.

That will produce a new file on your Desktop — a Zip-compressed item named “” — ie has a .zip filename extension. Just for safekeeping, for now. And then, move the “Brave-Browser” folder from the Desktop to the Trash. You might rename “” to be “” . . . as a reminder.

Thank you for hanging in there and pursuing a fix. Good work.

Thanks again for the help and for the additional tips. Cheers!


I have the same problem and it’s a disaster for me as all my bookmarks and passwords organized over the past year are saved there.

I managed to follow the steps (Thanks 289wk!) and reinstall Brave. It is working now, but I was not as lucky as tdellaringa so my bookmarks and passwords are gone. I still have the folders I had moved to the trash though. How can I use them to get back my bookmarks and passwords. Please help! Thanks!

@289wk @tdellaringa wld really appreciate if you can help me figure out the bookmarks, passwords thing! Thanks!

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.