Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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

Adobe Flash always fails to update in Firefox, permissions fail

more options

Fails because I don't have sufficient permissions. I am the administrator, I own the machine, I am the only user. Yet Chrome works fine???

Fails because I don't have sufficient permissions. I am the administrator, I own the machine, I am the only user. Yet Chrome works fine???

Chosen solution

Try to install the full version of that latest Flash plugin.

You can download the latest Flash player versions for Firefox via this page:


Try to install the Flash installer as administrator (right-click: Run As).

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen or hold down the Shift key) to see if that allows to install Flash.

Read this answer in context 👍 0

All Replies (2)

more options

Chosen Solution

Try to install the full version of that latest Flash plugin.

You can download the latest Flash player versions for Firefox via this page:


Try to install the Flash installer as administrator (right-click: Run As).

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen or hold down the Shift key) to see if that allows to install Flash.

more options

notwen said

Yet Chrome works fine???

Chrome uses a Pepper Flash Player (PPAPI) while web browsers like Firefox and SeaMonkey uses a NPAPI version.

http://www.adobe.com/software/flash/about/