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latest Firefox (125) locks up when typing to address bar in new tab while VPN is active

  • 6 cavab
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  • Last reply by zeroknight

maniac
maniac
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Since the update to version 125 Firefox on Windows 11 (all updates installed), when I open a new tab and start typing to the address bar WHILE the VPN to the office is active, Firefox locks up and can not be used anymore.

In taskmanager, there is no spike in memory or cpu usage visible. All I can do at this point is to kill Firefox via taskmanager.

I can enter anything in the address bar of an already open tab with an other website open, I can open new tab from the bookmarks, but I can not open a new tab and start typing in the address bar while the VPN is active.

Once I disable the VPN to the office, everything goes back to normal.

I never had this issue on a previous version of Firefox.

Any ideas whats causing this?

Since the update to version 125 Firefox on Windows 11 (all updates installed), when I open a new tab and start typing to the address bar WHILE the VPN to the office is active, Firefox locks up and can not be used anymore. In taskmanager, there is no spike in memory or cpu usage visible. All I can do at this point is to kill Firefox via taskmanager. I can enter anything in the address bar of an already open tab with an other website open, I can open new tab from the bookmarks, but I can not open a new tab and start typing in the address bar while the VPN is active. Once I disable the VPN to the office, everything goes back to normal. I never had this issue on a previous version of Firefox. Any ideas whats causing this?

Modified by NoahSUMO

All Replies (6)

zeroknight
zeroknight
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Does it still happen with default settings in a new browser profile? An easy way to test a new profile is to install Developer Edition and see if it happens there or refresh your existing profile. Make sure you stay signed out of your sync account when testing.

Does it still happen with the ESR version (115)?

maniac
maniac Question owner
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I will try to test with a new profile.

Never had this issue with any previous version of Firefox.

TyDraniu
TyDraniu
  • Top 25 Contributor
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Is it NordVPN?

maniac
maniac Question owner
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No, it's not a "public" VPN, it's VPN into my office (Cisco AnyConnect client).

maniac
maniac Question owner
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All of a sudden, it works again.¯\_(ツ)_/¯

This was driving me nuts for days and it seems to be gone now.

Just installed a Windows Update yesterday and disabled ads in the Windows Start menu (https://www.theverge.com/2024/4/24/24138949/microsoft-windows-11-start-menu-ads-recommendations-setting-disable).

Modified by maniac

zeroknight
zeroknight
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Try changing DNS over HTTPS (DoH) to "Off" or "Max Protection" and in Connection Settings change "Use system proxy settings" to "No proxy".