For streaming I wanted to retain my browser history while at the same time not showing it for the duration of the stream. I’ve thought about using two browsers, or duplicating the firefox configuration folder and linking to a different configuration for the streams. I think that may work. Any other options?
Use Firefox Profiles! You can type “about:profiles” into the URL bar, then you’ll get a dialog for managing profiles. Create a new one and that will be like a factory-reset Firefox, so bookmarks, extensions etc. are also separate. It’s basically like copy-pasting the configuration folder.
You can also launch a similar profile dialog from the command-line with
firefox -P, or launch a specific profile withfirefox -P myProfile.