MyEclipse crashing on macOS Sequoia

[brianvfernandes]

Fixed in macOS Tahoe & MyEclipse 2026.1

This OS level issue was fixed in macOS Tahoe, which also requires MyEclipse 2026.1 for compatibility. If you cannot make both these upgrades, please read on for a workaround.

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MyEclipse users on macOS Sequoia may experience frequent crashes of the IDE. This issue affects multiple versions of MyEclipse, including 2025.2 and earlier versions.

The crash is caused by a bug in the WebKit Engine in macOS Sequoia. A detailed discussion on this issue as well as references to the WebKit bug can be found here: eclipse-platform/eclipse.platform.swt#1978

Until this OS-level bug is addressed, please do the following to fix the issue:

1. Shut down MyEclipse
2. Execute the following command in the terminal
   defaults write myeclipse WebKitUsesPageCachePreferenceKey -int 0

You should no longer experience the crash on further use of MyEclipse.
For additional assistance or queries, please create a new topic on our forums or write to support@genuitec.com