We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Mozilla サポートの検索

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.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

Can't install new Firefox...says unauthorized publisher

  • 2 件の返信
  • 5 人がこの問題に困っています
  • 9 回表示
  • 最後の返信者: Morbus

AnonymousUser
AnonymousUser
more options

I used to have firefox and then I was having problems installing adobe flash player, then firefox itself crashed so i uninstalled it...now i can't seem to re-install the new firefox, it downloads from internet explorer and then says unknown publisher and file corrupt?

This happened

Not sure how often

i tried to download firefox

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Win64; x64; Trident/4.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MAAU; .NET4.0C)

I used to have firefox and then I was having problems installing adobe flash player, then firefox itself crashed so i uninstalled it...now i can't seem to re-install the new firefox, it downloads from internet explorer and then says unknown publisher and file corrupt? == This happened == Not sure how often == i tried to download firefox == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Win64; x64; Trident/4.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MAAU; .NET4.0C)

すべての返信 (2)

Morbus
Morbus
more options

Hello Anonymous.

Try downloading Firefox's installer to your documents first, and then running it from there. Hopefully that will get around Internet Explorer's buggy download "manager".

AnonymousUser
AnonymousUser 質問者
more options

R-click the Firefox installer, and select Run as Administrator. If that doesn't work, delete the installer, and R-click whatever browser you're using to download the Firefox installer.. select Run as Administrator, and then download/run the Firefox installer.

I had the same issue with my new Windows 7 setup. Wouldn't let me install Firefox even though I am set as the Administrator. I had to actually R-click and Run as Administrator.

Hope that helps.