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!

為了改善您的使用體驗，本網站正在進行維護，部分功能暫時無法使用。若本站的文件無法解決您的問題，想要向社群發問的話，請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問，我們的社群成員將很快會回覆您的疑問。

Avatar for Username

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊，或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

此討論串已被封存。 如果您有需要幫助，請新增一個新問題

Firefox is very slow!

  • 2 回覆
  • 6 有這個問題
  • 1 次檢視
  • 最近回覆由 jonzn4SUSE

Ray Dunne
Ray Dunne
more options

I have a very fast internet connection, 200 mbps and everything else on both my laptop and my mobile phone are working fine but Firefox is very slow. Pages load ok but videos will play for a short time and then freeze never to continue and downloads are painfully slow, 2 to 4 mbps. Edge and Chrome download normally and videos play with no issue. I need this fixed or Firefox is going bye bye!

I have a very fast internet connection, 200 mbps and everything else on both my laptop and my mobile phone are working fine but Firefox is very slow. Pages load ok but videos will play for a short time and then freeze never to continue and downloads are painfully slow, 2 to 4 mbps. Edge and Chrome download normally and videos play with no issue. I need this fixed or Firefox is going bye bye!

所有回覆 (2)

zeroknight
zeroknight
more options

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

Does it still happen in Troubleshoot Mode?

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
more options

Can you show how Firefox is slow? What's the make and model of the laptop? Windows home or pro version? WiFi or LAN? Router and Modem or just a Modem? Did you get the same results with Firefox in Safe Mode? What security software are you running?

由 jonzn4SUSE 於 修改