[corbindavenport]

Administrator access or sudo is required because the configuration paths (C:\Program Files\Mozilla Firefox on Windows, /etc/firefox/policies/ on Linux) are protected. The browser guides explain the manual install and uninstall process for anyone who doesn't trust the script.

[6031769]

I have firefox installed on Linux. There is no /etc/firefox/policies/ dir, nor indeed even an /etc/firefox/ dir. Therefore, no need for sudo.

[corbindavenport]

The /etc directory and everything under it is protected.