Unable to save edited torrc in Tails

1. How do I edit a Torrc file?
2. Where is Torrc file?

How do I edit a Torrc file?

The torrc file is just a flat text file, any text editor (like vim , gedit or notepad.exe ) should suffice. Open the file in the text editor and add the lines, or edit the lines if the options already exist with different definitions.

Where is Torrc file?

You can find your torrc file in the \Tor Browser\Browser\TorBrowser\Data\Tor path, where Tor Browser is the Tor's installation folder.