The best kind of workaround is no workaround.
In a Mozilla support document, the company urges users to update Firefox before Friday, March 14, 2025, due to an expiring root certificate, as first reported by Bleeping Computer. Failure to update ...
On March 14, 2025, a root certificate used to verify signed content and add-ons for Firefox and other Mozilla projects expired (note that Thunderbird does not do content verification, so that app will ...