In 2026, Safari crashes are typically linked to faulty browser extensions, an overloaded cache, or system resource constraints. As websites become increasingly complex with heavy JavaScript and high-resolution media, the browser's "WebKit" engine can struggle if it encounters poorly optimized code. One of the most common culprits is "Zombie Tabs"—background tabs that continue to consume significant RAM until the process hangs. To fix this, you should regularly clear your "History and Website Data" in Settings to remove corrupted cookies and cached files. If you are on a Mac, check if any third-party extensions (like ad blockers or password managers) are outdated, as these often cause instability after a macOS update. Another factor can be "iCloud Safari Syncing" errors, where the browser crashes while trying to reconcile bookmarks across multiple devices. Ensuring your device is updated to the latest OS version is critical, as Apple frequently releases "point updates" specifically designed to patch memory leaks and security vulnerabilities that cause the app to quit unexpectedly.