Question 1

What is the EOL Risk Score for Firefox 108?

Accepted Answer

Firefox 108 has an EOL Risk Score™ of 80 out of 100, placing it in the Critical risk band. The score is calculated from four factors: EOL Recency (40/40), Attack Surface (10/30), CISA KEV Exposure (20/20), and Extended Support Availability (10/10).

Question 2

Is Firefox 108 still supported?

Accepted Answer

Firefox 108 is no longer supported — it has passed its end of life date (January 17, 2023). No further security patches will be issued. Upgrade to a supported version or obtain extended lifecycle support.

Question 3

When does Firefox 108 reach end of life?

Accepted Answer

Firefox 108 reached (or will reach) end of life on January 17, 2023. After this date, no security patches or bug fixes are issued by the vendor.

Question 4

What are the security risks of running Firefox 108 after end of life?

Accepted Answer

After end of life, Firefox 108 no longer receives security patches. Any newly discovered CVEs remain unpatched indefinitely. Organizations running EOL software also face compliance violations under SOC 2, PCI DSS, HIPAA, and ISO 27001, which require use of supported software versions.