Never use 3rd party Uninstaller Firefox already has its own uninstaller. That program most likely messed the uninstall and now you need to remove the Firefox folder to reinstall Firefox again.

Hi, you should not need to install as administrator. What happens when you try to install normally?

Hi, you should not need to install as administrator. What happens when you try to install normally?

It doesn't recognize my administrator rights and it doesn't allow me to install normally.

That's not good then that's a possible corrupted OS and might require a complete wipe and reinstall of the OS to fix that issue before you can install any software now.

There is an uninstaller in the add / remove program for Firefox. Why use a 3rd party app for this simple task??? Keep it simple please! Boot to safe mode and see what you can do.

jscher2000 - Support Volunteer είπε

Hi, you should not need to install as administrator. What happens when you try to install normally?

It doesn't recognize my administrator rights and it doesn't allow me to install normally.

In case you haven't already, could you test with a "full" installer rather than the small installer that needs to fetch more files:

https://www.mozilla.org/firefox/all/#product-desktop-release

There's also an MSI installer, which may or may not bypass restrictions on EXE installers. Here's a link to the installers for the "el" locale (corresponds with "Ελληνικά"). If I have selected the wrong language folder, please click the ".." link to move up one level and then click into the correct locale folder.

https://archive.mozilla.org/pub/firefox/releases/133.0/win64/el/