Orion on macOS 26 won't open

TheEnbyperor

Orion will not open any windows, and is impossible to use on macOS 26.

Logs from starting

rror in loading website data: Error Domain=NSCocoaErrorDomain Code=260 "The file “wt_data.plist” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Users/q/Library/Application Support/Orion/Defaults/wt_data.plist, NSURL=file:///Users/q/Library/Application%20Support/Orion/Defaults/wt_data.plist, NSUnderlyingError=0x76090e730 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}
"CloudKit => fetchLatestChanges > enterSyncProcess"
"CloudKit => Devices - processQueuedSyncedItems > enterSyncProcess"
"CloudKit => TabGroups - processQueuedSyncedItems > enterSyncProcess"
"CloudKit => Tabs - processQueuedSyncedItems > enterSyncProcess"
Loading View Controller UI named: BrowserSidebarUI
Loading View Controller UI named: StartPageUI
cacheURL: file:///Users/q/Library/Application%20Support/Orion/Defaults/StartPageInitialCache
2025-06-09 23:31:44.838 Orion[8507:101533] Warning: Column selection is not supported in view-based table and outline views (<Orion.TableView: 0x7617b2400>).
Loading View Controller UI named: StartPageModalUI
2025-06-09 23:31:44.953 Orion[8507:101533] .sdef warning for argument 'FileType' of command 'save' in suite 'Standard Suite': 'saveable file format' is not a valid type name.
2025-06-09 23:31:45.007 com.apple.WebKit.Networking.Orion[8509:101712] DiskCookieStorage changing policy from 2 to 0, cookie file: file:///Users/q/Library/HTTPStorages/com.kagi.kagimacOS.2.PrivateBrowsing.0ebaf180-c940-4e10-9d69-1b08cc8f5a54.binarycookies
WARNING: No View Controller UI named: ButtonUI
WARNING: No View Controller UI named: ButtonUI
"CloudKit => CloudKit > batchUpdate"
Error in loading local sync items: Error Domain=NSCocoaErrorDomain Code=260 "The file “localSyncStorageCache” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Users/q/Library/Application Support/Orion/Defaults/Local Storage/Extensions/localSyncStorageCache, NSURL=file:///Users/q/Library/Application%20Support/Orion/Defaults/Local%20Storage/Extensions/localSyncStorageCache, NSUnderlyingError=0x75fa0adf0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}
"CloudKit => Devices - processQueuedSyncedItems > leaveSyncProcess"
"CloudKit => TabGroups - processQueuedSyncedItems > leaveSyncProcess"
Updating cache isShowingAllFavsOnStartPage: false, isShowingFullReadingListOnStartPage: false
Skipped writing quick start items binary to disk!!! Binary has no changes.
"CloudKit => Tabs - processQueuedSyncedItems > leaveSyncProcess"
"CloudKit => fetchLatestChanges > leaveSyncProcess"
"CloudKit => CloudKit > batchUpdate::success"
"CloudKit => CloudKit > batchUpdate"
"CloudKit => CloudKit > batchUpdate::success"

Version: 0.99.133.3

cultpony

I'm running into the same issue. Curiously, one of my profiles can be opened, but it shows 0 tabs open, with tabs being non-functional entirely. I can use the current tab, sort of, but it won't load much.

It's the same for RC and the public version, both crash the same.

I do get a stack trace when it crashes:

	0   CoreFoundation                      0x000000019f5aa690 __exceptionPreprocess + 176
	1   libobjc.A.dylib                     0x000000019f092430 objc_exception_throw + 88
	2   CoreFoundation                      0x000000019f68ba90 +[NSObject(NSObject) instanceMethodSignatureForSelector:] + 0
	3   CoreFoundation                      0x000000019f543cf8 ___forwarding___ + 1480
	4   CoreFoundation                      0x000000019f543670 _CF_forwarding_prep_0 + 96
	5   Orion                               0x00000001033dbc00 Orion + 10320896
	6   Orion                               0x00000001033269ec Orion + 9578988
	7   Orion                               0x0000000102cfe4ac Orion + 3122348
	8   Orion                               0x000000010309da38 Orion + 6920760
	9   Orion                               0x0000000102cfdc10 Orion + 3120144
	10  Orion                               0x0000000102d171bc Orion + 3223996
	11  Orion                               0x0000000102d79f6c Orion + 3628908
	12  libdispatch.dylib                   0x000000019f2ffb3c _dispatch_call_block_and_release + 32
	13  libdispatch.dylib                   0x000000019f319aa4 _dispatch_client_callout + 16
	14  libdispatch.dylib                   0x000000019f3370b0 _dispatch_main_queue_drain.cold.5 + 812
	15  libdispatch.dylib                   0x000000019f30ef28 _dispatch_main_queue_drain + 180
	16  libdispatch.dylib                   0x000000019f30ee64 _dispatch_main_queue_callback_4CF + 44
	17  CoreFoundation                      0x000000019f586064 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
	18  CoreFoundation                      0x000000019f558920 __CFRunLoopRun + 1972
	19  CoreFoundation                      0x000000019f616b78 _CFRunLoopRunSpecificWithOptions + 564
	20  HIToolbox                           0x00000001abeed874 RunCurrentEventLoopInMode + 316
	21  HIToolbox                           0x00000001abef0af4 ReceiveNextEventCommon + 456
	22  HIToolbox                           0x00000001ac07a318 _BlockUntilNextEventMatchingListInMode + 48
	23  AppKit                              0x00000001a3d851a0 _DPSBlockUntilNextEventMatchingListInMode + 236
	24  AppKit                              0x00000001a38e1f9c _DPSNextEvent + 588
	25  AppKit                              0x00000001a42e785c -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688
	26  AppKit                              0x00000001a42e7568 -[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:] + 72
	27  AppKit                              0x00000001a38da810 -[NSApplication run] + 368
	28  AppKit                              0x00000001a38c67cc NSApplicationMain + 888
	29  Orion                               0x000000010322e83c Orion + 8562748
	30  dyld                                0x000000019f105854 start + 6256

Dustin

During the last few developer beta releases of a new macOS, the Orion team pushed out an update with support for the beta explicitly mentioned in the release notes. Normally there isn't too long of a wait in my experience.

laiz

Orion Version 0.99.134 is now out and it supports macOS Tahoe

Sottey

Upgraded to macOS 26. Orion opens and displays my custom homepage fine. But any subsequent click results in Orion no longer responding. No more clicks, no menu response. I have to use Activity Monitor to kill it.

If I use searchlight to search, and it opens the results in Orion, the page loads, but any click results in Orion freezing.

NOTE: Was forced to select an OS, but macOS 26 is not in the drop down, so I selected Sequoia even though that is NOT the os version.

I expected the browser to work as expected. Both Safari and Chrome work as expected.

Thanks!

macOS 26, Version 0.99.133-beta (WebKit 621.1.2.111.4)

Sequoia (15)

ninjabowtie

The app does not function on the new OS. Whenever websites try to load, the app crashes. This is true even when on a fresh install of the app. Please add support.
Many UI elements also just bug out and disappear for some reason.

M1 Macbook Pro MacOS 26.0 Beta (25A5279m)

Argelius

In MacOS Tahoe (developer beta), when Orion is clicked on, nothing happens.

I'm running whatever the latest version of Orion is (since I can't launch the app, I can't determine the version).

Safari and Chrome work as usual.

Orion to launch as usual.

Latest

Tahoe (26)

laiz

Hey, the latest version (released today) has support for macOS Tahoe. Since you are unable to launch Orion, please download the Tahoe version from https://kagi.com/orion/#download_sec and replace your current Orion.app with that.

Argelius

Thanks! I stupidly didn't think to look. All is well now. Issue resolved!