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

Can no longer ope Outlook in Firefox after 10 years of being okay

  • 1 回覆
  • 1 有這個問題
  • 4 次檢視
  • 最近回覆由 cor-el

more options

I can no longer open Outlook (Office 365) in Firefox. I reset to original factory setting and was able to open it once but now I keep getting the same error message attached. I get through the login and then it starts "glitching" in the bottom left of the screen while trying to connect.

I can no longer open Outlook (Office 365) in Firefox. I reset to original factory setting and was able to open it once but now I keep getting the same error message attached. I get through the login and then it starts "glitching" in the bottom left of the screen while trying to connect.
附加的畫面擷圖

所有回覆 (1)

more options

What security software do you have?

It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.


You can try these steps in case of issues with webpages:

You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings).

"Remove the Cookies" for websites that cause problems:

  • Settings -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Settings -> Privacy & Security
    Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window