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

need to get back to my firefox on my computer before installation of new version

more options

Hi need to get my old firefox back before installation of new version.

I have a subscription that allows for downloading of videos using a "DOWNLOAD" button that has disappeared after new version of firefox was loaded. also my antivirus application has disappeared. How do i put everything back the way it was. I'm using windows 10.

Please help

Hi need to get my old firefox back before installation of new version. I have a subscription that allows for downloading of videos using a "DOWNLOAD" button that has disappeared after new version of firefox was loaded. also my antivirus application has disappeared. How do i put everything back the way it was. I'm using windows 10. Please help

所有回覆 (1)

more options

During your update, did Firefox mention having to create a new profile or performing a Refresh/Tune-up?

Updating Firefox should not affect your antivirus application. You may want to investigate that first since it affects your entire system.