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24 October 2016 @ 03:26 pm
Firefox 49.0.2 update - beware...  
So apparently the new Firefox update (49.0.2) overwrites your cert8.db file - for many people that does not matter; but if you have a lot of self-signed certs and internal to your company certificates to trust this is a catastrophe unless you backed up your cert8.db or can get another from your corporate IT folks.

On a Mac it is located in ~/Library/Application Support/Firefox/Profiles/__your_profile__/cert8.db
Backup that file before you update to 49.0.2