Firefox developer reports that Intel-based PCs are crashing more frequently due to extreme heat
Gabriele Svelte , a member of the Firefox development team, posted on social media that 'users in the northern hemisphere who use Intel's Raptor Lake (13th generation Core processor) may be experiencing frequent PC crashes due to the extreme heat of summer. The Firefox development team has received a large number of crash reports related to Raptor Lake.
According to Svelte, the locale information of the bug reports clearly shows that the number of problems is high in 'European countries affected by the heat wave.' Checking the Firefox bug information aggregation site, we can see that a large number of crash reports have been received, especially for the ' Core i9 14900KF (family 6 model 183 stepping 1) .'
Firefox has a feature that automatically reports crashes, but the company says it has disabled this feature due to the large number of crash reports from this model.
Intel has repeatedly released microcode fixes for Raptor Lake, which have caused crashes due to the CPU design, and there is a clear correlation between the application of these microcodes and the number of Firefox crashes.
When the microcode fix ' 0x12C ' was released in 2025, the number of Firefox crash reports also decreased. However, the issue reoccurred with the release of ' 0x12F ' in May 2025, and the number of reports increased again.
Regarding the crash issue with Raptor Lake, information is exchanged at the following link. Svelt has also contacted Intel multiple times, but has not received a response.
