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Firefox will not connect to the internet after Windows 10 Update

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  • Letzte Antwort von FredMcD

schultzy
schultzy
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I have a clients Windows 10 Pro PC that recently installed a windows update (KB402271 and KB4023834 are the main Windows 10 updates). The Creators Update has not been installed.

Since the update, Firefox opens very slowly BUT will not connect to any Website - although Internet Explorer will. I have been through the troubleshooting including uninstalling and re-installing Firefox BUT it made no difference.

Is there a known problem and solution.

I have a clients Windows 10 Pro PC that recently installed a windows update (KB402271 and KB4023834 are the main Windows 10 updates). The Creators Update has not been installed. Since the update, Firefox opens very slowly BUT will not connect to any Website - although Internet Explorer will. I have been through the troubleshooting including uninstalling and re-installing Firefox BUT it made no difference. Is there a known problem and solution.

Alle Antworten (1)

FredMcD
FredMcD
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Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

https://support.mozilla.org/en-US/kb/configure-firewalls-so-firefox-can-access-internet Configure firewalls so that Firefox can access the Internet.