The Dropbox app doesn't start up on macOS Tahoe 26.0.1.

Nancy​ or Walter​ been having this same problem with Dropbox. I contacted support with the logs it generated within a text file in regards to the error, and they just told me to check the FAQ or community posts and that the support ticket will be closed. Been frustrated trying to figure out how this can be fixed... I have the newest version of Dropbox and I'm having issues on macOS 26.2 Beta. Although judging by other users, it seems like it's an issue in 26.1 public release as well. I did try restarting my Mac as well as reinstalling Dropbox multiple times (and wiping its associated files for a fresh restart). Any help with this would be much appreciated!

Hey Oriion - sorry to hear about this.

The operating system (Mac OS Beta) you are running is not currently a fully tested or supported environment for the Dropbox desktop application. 

While we support a variety of operating systems, we are unable to support these versions until they are officially classified as stable.

I wish I had a better answer than this and please let me know if you have anything else to ask or add. 

Having the same issue. Dropbox non-functional on MacOS Tahoe 26.1. Dropbox is about to lose a ton of users. 

Uninstalling and re-installing Dropbox doesn't work. Issue remains.

Hey koekoe, let's jump right into this!

Just to make sure I'm aligned with you, when you say that the app doesn't start do you mean that it remains unresponsive when you click the little Dropbox icon on your menu bar? If you get any errors feel free to let me know. 

Can you also hover your mouse over the icon, and let me know the version of the app that you're currently using?

If you haven't tried already, can you perform an advanced reinstall and let me know if the behavior remains the same? 

Let me know more, and we'll take it from there!

Hey koekoe!

Just popping in to see if you've had a chance to look at our last message. Still need help? We're all ears! If the issue is sorted, let us know what worked out for you.

Hello

I'd like to use my Dropbox app to configure it to sync other folders, but it's buggy.

It only displays the local folder.

I've tried closing it, uninstalling it, restarting my Mac, and reinstalling it…

I can't get the app to open; it keeps trying to open the Dropbox folder.

I've tried right-clicking to open it and bringing it back to the top of Launchpad, but nothing works…

I'm using a Mac Studio M3 Ultra with Tahoe, updated.

Does anyone have any ideas, please?

Hi EthanThePhoenix, could you clarify if you're single clicking the Dropbox icon in the menu bar to open the desktop app, in order to access the Preferences?

Hi,

it has completely disappeared from menubar, I have to reach app folder to find it but it is iny opening finder. I single or double click, won't change anything.

Have you tried these steps to see if the icon is being hidden by Mac OS on the menu bar?

There are major, major issues with Dropbox on MacOS Tahoe, including the latest 26.2. I managed to fix it, albeit temporarily. I think it has to do with poor memory management probably -- Dropbox processes even block the copy/paste clipboard, where I can't copy or paste anything, and I have to quit Dropbox in order to unblock that process.

I suggest Dropbox work very hard with the Apple team for both of you to implement fixes on both your ends. To be honest, this is really making me think about leaving Dropbox and just using iCloud because it doesn't have any of these issues.

I found a temporary solution to Dropbox not syncing (it doesn't resolve the occasional copy/paste issue, but it does appear to resolve syncing) is to exclude the Dropbox folder on local disk from the Spotlight indexing. That appears to alleviate a lot of syncing and blocking issues. 

But it's bad. imo you're going to bleed users until you resolve this matter.