I've run into a frustrating problem when attempting to upgrade Firefox. I was running version 16 attempting to upgrade to version 18 through Synaptic. I received the following error:
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_18.0.2+build1-0ubuntu0.12.04.1_i386.deb 404 Not Found [IP: 126.96.36.199 80] W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox-globalmenu_18.0.2+build1-0ubuntu0.12.04.1_i386.deb 404 Not Found [IP: 188.8.131.52 80]
My problem is very similar to: Firefox update fails with "not found" error so I followed the advice there. No success.
I tried changing the server many times, but this brought up another error. I then tried removing the Firefox package (not a complete removal to preserve settings) and figured I could switch servers and try re-installing the package from scratch. I still receive the 404 Error on US servers, and when I switch to Main servers, I get:
E: I wasn't able to locate a file for the firefox package. This might mean you need to manually fix this package.
Using apt-get it says:
Package firefox is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'firefox' has no installation candidate
I now have no Firefox at all and can't reinstall the package through Synaptic, Ubuntu Software Center, nor apt-get.
How can I get Firefox reinstalled?