Comet Browser crashes 5 to 10 times a day with BTT running

Bugs or Unexpected Behavior
1

  1. Describe the bug
    Disabling BTT makes the silent (ie no crash dump) Comet crashes stop.
    I tried:

    1. Clean reinstall (AppCleaner, zero extensions)

  2. Tried a new macOS user account.

  3. Did a full fresh macOS install on a new volume.
    The crash persisted through all of this.

    Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):

Screenshots
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Device information:

  • Type of Mac: MBP M1 with Touchbar
  • macOS version: 26.2
  • BetterTouchTool version: 5.800

Additional information (e.g. crash logs, related issues, etc.):
2026-01-06 23:42:34.814830+0100 localhost runningboardd[414]: ((null)) statedump:
<RBAssertion| identifier:414-11010-80724 target:[app<application.com.hegenberg.BetterTouchTool.577769.577775(501)>:11010] explanation:"AppNap adapter assertion" active originator:[app<application.com.hegenberg.BetterTouchTool.577769.577775(501)>:11010]

2026-01-06 23:42:34.814830+0100 ... intransientState:<RBAssertionIntransientState| ... doms:com.apple.appnap:Enable,com.apple.appnap:PreventBackgroundSockets ...>

2026-01-06 23:42:34.814830+0100 ... <RBAssertion| identifier:414-379-111 target:[xpcservice<com.apple.quicklook.QuickLookUIService...>:725] explanation:"viewBridge:725" ...>

2026-01-06 23:42:34.814830+0100 ... <RBAssertion| identifier:414-350-82347 target:[anon(501):13283] explanation:"App is holding power assertion" ...>

2

Most likely the browser doesn't implement some of the macOS APIs correctly.

You can try to disable some BTT functionality and see whether it helps, but a real fix can only be implemented in the Comet app

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3

Thanks Andreas. I had already tried to disable BTT completely for Comet, and that reduced Comet crashes by 90%. I then closed BTT completely, but even then I still get the occasional (every 2 days) crash, so obviously not BTT-related.