Upgrade to Firefox 4 in Ubuntu 10.04 & 10.10

[zero-n]

1- Add Mozilla team repository


sudo add-apt-repository ppa:mozillateam/firefox-stable
2- Update repository list


sudo apt-get update
3- Upgrade your Firefox


sudo apt-get upgrade

[tumutanzi]

Here is the easiest method ever on the earth.

Just copy the following command and paste it on the terminal of Ubuntu (Press the keyboard: Ctrl+Alt+T, or click Applications > Terminal).
sudo add-apt-repository ppa:mozillateam/firefox-stable && sudo apt-get update && sudo apt-get upgrade

Ref: http://www.tumutanzi.com/2011/03/upgrade-to-firefox-4-in-ubuntu-1004.html

[zero-n]

using && is good but if command exit status is not 0 which mean an error your method will not upgrade Firefox.
Specially some people are suffering from repository gpg key problem and they didn't fix it

[abhinavy2j]

The first command worked fine. But after the update command, i got this :

W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://deb.opera.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A2019EA84E7532C8

W: Failed to fetch http://deb.opera.com/opera/dists/stable/Release

W: Some index files failed to download, they have been ignored, or old ones used instead.

Thanks for the help.

[zero-n]

its seems that you have problem with your Opera repository.

did you tried the upgrade command cause i think problem in one repository won't stop other repositories from update.

[tumutanzi.com]

Here is the easiest method ever on the earth.

Just copy the following command and paste it on the terminal of Ubuntu (Press the keyboard: Ctrl+Alt+T, or click Applications > Terminal).
sudo add-apt-repository ppa:mozillateam/firefox-stable && sudo apt-get update && sudo apt-get upgrade

Ref: http://www.tumutanzi.com/2011/03/upgrade-to-firefox-4-in-ubuntu-1004.html

Sorry, the right link of "Upgrade to Firefox 4 in Ubuntu 10.04 & 10.10" is: http://tumutanzi.com/archives/142

Now the latest Firefox is the SEVEN version.