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After Upgrade to Mozilla Firefox 96.0.1 (Latest Version) Firefox unable to connect..........

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  • Last reply by FredMcD

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Just to advise after the recent update to Mozilla Firefox v96.0.1 there was a problem with Internet connection not then being available from Firefox.

For extra privacy I have Win 10x64 Pro set to the free Cloudflare free use DNS settings of 1.1.1.1 and 1.0.0.1 and this has worked just fine for several months now.

However, since the update as above, Firefox could no longer connect to the Internet.

However, my other Browsers: SeaMonkey and Tor worked just fine.

For security reasons, I never use Chrome, Edge or Safario, as they are basically insecure.

Thinking there was a router problem, I reset that with the pin through the reset hole at the rear, and rebooted the PC.

No further ahead, and I knew it was not a Malware problem either, as I use very good AntiMalware Software.

I switched off the fiber box for 10 minutes, restarted it, no change, Firefox still could not connect.

Aha, a look through the Firefox Settings > Network and checked the DNS setting, which had been default set by Firefox to "CIRA Canadian Shield (By Default)" - That was NOT the setting I had placed into the Win10 Operating System.

Cloudflare was the second option there, so I selected that.

I didn't try the third option of "Next DNS".

Saved the setting (Option 2 Cloudflare)

Rebooted the PC, and no further troubles.

That CIRA Canadian Shield (Default) by Firefox was a trap I hadn't run into.

Just thought you may wish to put this in an appropriate place, as a warning to others.

Experienced with all Windows O/S since 1993, every style of O/S Microsoft has had available, plus much other Software.

This is the first unexpected problem ever I've had with Mozilla Firefox.

I run this PC 24/7, never turned off except for a reboot.

I can run some Firefox 25+ Windows and a total of over 150 Tabs, Run SeaMonkey and Tor with over 100 Tabs between them, and can still do other work.

Pleaty of RAM and SSD's for Operating Systems, backup to HDD's for longevity.

Still using 20+ year old HDD's still good, but they don't thermally cycle (Always on except for reboots), and I am interested to see how long before a failure of one of them =- I just stor DATA on these old HDD's (Copy from elsewhere, so it doesn't matter if I have a failure of an old HDD.

Cheers from a Far-Away-Land (Zealandia SupraContinent)

Just to advise after the recent update to Mozilla Firefox v96.0.1 there was a problem with Internet connection not then being available from Firefox. For extra privacy I have Win 10x64 Pro set to the free Cloudflare free use DNS settings of 1.1.1.1 and 1.0.0.1 and this has worked just fine for several months now. However, since the update as above, Firefox could no longer connect to the Internet. However, my other Browsers: SeaMonkey and Tor worked just fine. For security reasons, I never use Chrome, Edge or Safario, as they are basically insecure. Thinking there was a router problem, I reset that with the pin through the reset hole at the rear, and rebooted the PC. No further ahead, and I knew it was not a Malware problem either, as I use very good AntiMalware Software. I switched off the fiber box for 10 minutes, restarted it, no change, Firefox still could not connect. Aha, a look through the Firefox Settings > Network and checked the DNS setting, which had been default set by Firefox to "'''CIRA Canadian Shield (By Default)'''" - That was NOT the setting I had placed into the Win10 Operating System. Cloudflare was the second option there, so I selected that. I didn't try the third option of "Next DNS". Saved the setting (Option 2 Cloudflare) Rebooted the PC, and no further troubles. That CIRA Canadian Shield (Default) by Firefox was a trap I hadn't run into. Just thought you may wish to put this in an appropriate place, as a warning to others. Experienced with all Windows O/S since 1993, every style of O/S Microsoft has had available, plus much other Software. This is the first unexpected problem ever I've had with Mozilla Firefox. I run this PC 24/7, never turned off except for a reboot. I can run some Firefox 25+ Windows and a total of over 150 Tabs, Run SeaMonkey and Tor with over 100 Tabs between them, and can still do other work. Pleaty of RAM and SSD's for Operating Systems, backup to HDD's for longevity. Still using 20+ year old HDD's still good, but they don't thermally cycle (Always on except for reboots), and I am interested to see how long before a failure of one of them =- I just stor DATA on these old HDD's (Copy from elsewhere, so it doesn't matter if I have a failure of an old HDD. Cheers from a Far-Away-Land (Zealandia SupraContinent)
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That was very good work. Well Done.

Please post again the part about; 'Aha, a look through the Firefox Settings'

Then flag that post as Solved Problem as this can help others with similar problems. Go to that post and click the 'Solved' button to its right.

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