Firefox bug: certification loop

Firefox and by-products may encounter loop issue when checking SSL certificates. It arrives when Firefox memorizes 2 intermediary certificates that cross each other, making the algorithm unable to find the right path to the root.

That issue is not a new one, but hasn't been fixed yet. See Firefox documentation.

TBS X509 products can be affected for Firefox might memorize 2 intermediaries generating a loop.

When it happens, users can delete the memorized certificates (the 'personal security' kind) through Firefox certificates management tool.