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How do I install the latest stable version of Firefox?

I'm using Ubuntu 11.10 (Oneiric Ocelot). How can I update Firefox? It's currently version 7.

sudo apt-get update
sudo apt-get upgrade

Or just refresh update manager.

It's part of the normal release system (v8 is in both ubuntu-updates and ubuntu-security) so you should get it. If you're still not getting it, there's likely a problem with your updates in general.

Running sudo apt-get update manually in a terminal should display any errors.

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Click the system/power cog and click "Software Up to Date" or "Updates Available" to bring up the Update Manager.

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Click "Install Updates" enter image description here

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