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Updated W10 to FF 116 and had cert problems

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  • Last reply by Wylbur

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After updating a W10 laptop from 115 to 116 of FF the user started having problems with getting to different websites (sites they worked on/with regularly). The problem is the cert DB. The doc I found says that it is cert8.db. Actually it is now cert9.DB.

What I had to do was go to task manager and kill a task that was holding the cert9.db file. Then I could rename it (cert9.old.db). Then restarted their laptop and FF came up and started fixing the cert file (as expected). This seems to have fixed their problem.

After updating a W10 laptop from 115 to 116 of FF the user started having problems with getting to different websites (sites they worked on/with regularly). The problem is the cert DB. The doc I found says that it is cert8.db. Actually it is now cert9.DB. What I had to do was go to task manager and kill a task that was holding the cert9.db file. Then I could rename it (cert9.old.db). Then restarted their laptop and FF came up and started fixing the cert file (as expected). This seems to have fixed their problem.

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If you run into this, you can't help but replicate it! All websites fail with some cert error or another. And several of them required login.... But I remember something about OV and some cert authority. Lost the note where I wrote that down.

As a result, I had to use my laptop to search the FF site for cert problems because I couldn't capture and email to me from the user's laptop.

The URL that caused me to see what the problem probably was is this: https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean#

This led me into finding a 12 year old solution. But it was specifically saying cert8.db. So I thought I should post something about this now being cert9.db and not cert8.db. That should help others realize it is the same problem/solution.

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Point of clarification: My system is W11 and it is the system where I posted this. The user's system is W10. The tag shows windows 11, and I can't seem to figure out how to fix that. I think this may be misleading.

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Chosen Solution

If you run into this, you can't help but replicate it! All websites fail with some cert error or another. And several of them required login.... But I remember something about OV and some cert authority. Lost the note where I wrote that down.

As a result, I had to use my laptop to search the FF site for cert problems because I couldn't capture and email to me from the user's laptop.

The URL that caused me to see what the problem probably was is this: https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean#

This led me into finding a 12 year old solution. But it was specifically saying cert8.db. So I thought I should post something about this now being cert9.db and not cert8.db. That should help others realize it is the same problem/solution.