Analysis reveals that up to 15% of Firefox crashes are caused by memory bit flips
While most software crashes are caused by incompatibility between the software itself and the runtime environment, hardware issues can also occur. Gabriele Svelte , a member of the Firefox development team, reported an interesting study finding that 'up to 15% of Firefox crashes were caused by physical defects in memory.'
Svelt, who was involved in the development of Firefox's crash reporting system, added a 'memory test feature when submitting a crash report' in 2025. After analyzing approximately 470,000 crash reports submitted by users worldwide over a one-week period, he found that approximately 25,000 crashes were likely caused by memory bit flips. This 'approximately 25,000' figure is based on a conservative estimate; in reality, up to 10% of crashes are due to 'hardware defects.' Excluding resource exhaustion such as memory shortages, the crash rate due to 'hardware defects' is estimated to be up to 15%.
