This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

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

All Replies (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.