Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Om de ûnderfining foar jo te ferbetterjen is tydlik de funksjonaliteit dan dizze website troch ûnderhâldswurk beheind. Wannear in artikel jo probleem net oplost en jo in fraach stelle wolle, kin ús stipemienskip jo helpe yn @FirefoxSupport op Twitter en /r/firefox op Reddit.

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Firefox can't access any WEB Site and always present the same message "Firefox can’t establish connection with server SERVERNAME". However if I use IE or Google Chrome the web site is accessible . I've already uninstalled and installed FireFox .

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Firefox can't access any WEB Site and always present the same message "Firefox can’t establish connection with server SERVERNAME". However if I use IE or Google Chrome the web site is accessible . I've already uninstalled and installed Firefox but the problem doesn’t change.

Firefox can't access any WEB Site and always present the same message "Firefox can’t establish connection with server SERVERNAME". However if I use IE or Google Chrome the web site is accessible . I've already uninstalled and installed Firefox but the problem doesn’t change.

Alle antwurden (2)

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Did you check your security software (firewall)?

A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.

See Server Not Found - Troubleshoot connection problems and Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls

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After changing the security level of my firewall software, Firefox starts working again. Thanks. Après modifier le niveau de sécurité du Firewall, Firefox a marché bien. Je vous remercie. Após midificar o nível de seguraça do Firewall, o Firefox voltou a funcionar.