Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen
Dieses Thema wurde archiviert. Bitte stellen Sie eine neue Frage, wenn Sie Hilfe benötigen.
Archiviert

Firefox 17 painfully slow on new laptop

Firefox
duranh antwortete vor 13 Jahren
duranh
duranh

I have a brand new laptop running Windows 7 64 bit. Firefox 17 is running very very slow. IE9 runs perfectly fine. Speedtest.net results using IE averages 13MB download speeds; using Firefox averages 2.5MB. Is there a known compatibility issue with Windows 7 64 bit or something? I love Firefox and want to use it over IE, so I'm hoping there's a fix. By the way, I tried a couple of tweeks that I found online, but they didn't seem to help or hurt the problem.

I have a brand new laptop running Windows 7 64 bit. Firefox 17 is running very very slow. IE9 runs perfectly fine. Speedtest.net results using IE averages 13MB download speeds; using Firefox averages 2.5MB. Is there a known compatibility issue with Windows 7 64 bit or something? I love Firefox and want to use it over IE, so I'm hoping there's a fix. By the way, I tried a couple of tweeks that I found online, but they didn't seem to help or hurt the problem.

Alle Antworten (2)

cor-el
cor-el
  • Moderator

Which security software (firewall, anti-virus) do you have?

If you use F-Secure Browser Protection then see:

Try to disable "Use advanced process monitoring" in the F-Secure Deepguard settings.

  • open Computer Security main window and select "Settings"
  • in settings dialog go to "DeepGuard"
  • uncheck "Use advanced process monitoring" checkbox

Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

duranh
duranh Fragesteller

I'm glad you asked about the anti-virus protection because I haven't installed it yet - I forgot. I use Microsoft Security Essentials, though.