#Firefox mac insecure connection how to
#Firefox mac insecure connection upgrade
#Firefox mac insecure connection pro

When you then relaunch Firefox, you should see no change at all. Just go back to the same folder, remove the new file that Firefox creates, and restore the name to the old file. Maybe things are back to normal now, but if it goes 'off track' again, it's something to try that is easy to back out of, should bad things happen. (file MIGHT have a different number with your older Firefox, but serves the same function. I still think it would be a 'good idea' to try that cert9.db file rename/reset like I suggested above in post #6. If your old macbook can't go to Sierra, you should be good with El Capitan - and you can 'kick the can' down the road for your old MacBook for a couple of more years.Д«ottom line, if you are concerned about your 'net security, you have to realize that older systems eventually become a 'not so good' choice for security.ДЄnyway, good to hear that you are successfully connecting. And, that would need 10.12 Sierra (which IIRC you know something about ).

Simply moving up one system version to OS X 10.9 Mavericks would allow you to go to a (much more secure) Firefox 78 - very near the current version 81. Just for info - you are stuck with Firefox 48 on Mountain Lion. I suspect that have moved past the security capacity of the old FireFox app that you are using on Mountain Lion - and Mountain Lion is not helping you, either. That new certificate file should not affect anything else in your browser. There's a good chance that will fix your problem, and won't affect your usual security setup on your Mac, or whatever you use with your internet connection. When you rename the existing file, then re-launch Firefox, a new certificate file is created. That file is used by Firefox in conjunction with the security certificates that web sites offer. Will that erase important things like my Bookmarks, History, Settings, etc? I would never use an ISP's DNS or my hotel's DNS for privacy reasons.Д«ut, changing your DNS settings would be for testing only, change back if that's no help

#Firefox mac insecure connection pro

While sometimes those free DNS servers go offline or peter out, the ones I currently have work on this rMBP, so they should work on my MacBook Pro too.ДЄnd, as stated before, Google's DNS servers should *always* work.

#Firefox mac insecure connection how to

I know I need to upgrade, but I am so swamped with work and life I don't have time to migrate my 1TB of data off of my MacBookPro and alsofigure out how to keep my working applications working.)Д«eing a privacy and security nut, I have been using the Open NIC Project for years, and choose DNS that offers no logs. (Yeah, I know it's ancient, but ironically I can do lots of things I can't do on my rMBP's running macOS Sierra. If that fixes your issue, trash that xxxx.old file that you renamed.

Quit Firefox, then, rename that file by adding. Look for a file named something like cert9.db (the number might be different in cert9.db, but should be the only file cert#.db). There might be several folders listed, choose the one closest to your current date. In a few steps, open your Firefox profile folder (it's in your user Library/Application Support folder. If you search for the error message that you get about the secure connection failed, you can find some steps that might fix your issue by removing (or renaming) the file that stores the intermediate certificate files that Firefox uses.

Have you tried OTHER DNS servers, such as OpenDNS? One more related question: Does your difficulty with FireFox only happen when connecting to the hotel's internet?

#Firefox mac insecure connection upgrade

Related to that: What macOS version are you booting from?Д¬an you possibly upgrade to a later macOS version? What Firefox version is running on your 'olde' Macbook?