How to remove/uninstall Firefox Nightly build, I'm on Ubuntu 12.04. Made an error, I'm supposed to be installing Firefox 13.
If you are running the nightly build of Firefox https://launchpad.net/~ubuntu-mozilla-daily/+archive/ppa then to remove the nightly build of Firefox run this command in the terminal
You need to undo what you did to get the nightly builds in the first place.
for example: (may not exactly match your setup)
Then just update you system.