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I foolishly upgraded my Firefox install on Ubuntu to the beta 4 release, I believe by adding the PPA repository -- is there an easy way to roll it back to the 3.6 version provided by Ubuntu?

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migrated from Mar 8 '11 at 1:50

This question came from our site for system and network administrators.

Can you give some details about how you did the install? Specifically, did you: a) install via a custom apt repository; b) install directly via a .deb package; c) install the binary directly? – Shane Madden Mar 8 '11 at 1:39
He installed it through the PPA, as it says in the original post :) – Thomas Boxley Mar 8 '11 at 2:45
Hi Thomas-- he had asked for info and I edited the original post ;) – julio Mar 8 '11 at 3:12
up vote 4 down vote accepted

Yes, try these commands:

sudo apt-get install ppa-purge
sudo ppa-purge ppa:ubuntu-mozilla-daily/ppa 

Which will remove the PPA, sudo apt-get remove firefox-4.0 to remove Firefox 4.0, and sudo apt-get update and sudo apt-get upgrade to refresh the repository sources and upgrade (downgrade) "Namoroka" to plain old Firefox 3.6.

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thanks thomas-- I get the following error: sudo: ppa-purge: command not found – julio Mar 8 '11 at 3:12
@julio: sudo apt-get install ppa-purge – Alin Andrei Mar 8 '11 at 8:48
ok, I did this and removed FF4-- however when I refresh and then upgrade, there's no changes made (no install of 3.6 )-- any ideas? – julio Mar 8 '11 at 22:51
@thomas-- I am not sure how to determine that. I had the daily PPAs in my sources list, until they were disabled on upgrade from 10.01 to 10.10. After that, naturally, I was stuck on FF 4.0 beta 8. I removed the PPAs and purged them, but no rollback happened. – julio Mar 9 '11 at 17:23
it's Firefox 4.0b8 – julio Mar 10 '11 at 3:23

If you want a GUI way then you can install Ubuntu Tweak (Download Link) then run it from Applications -> System Tools. Then navigate to "Package Cleaner" and click unlock and select Purge PPAs and select mozilla daily ppa

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Then click cleanup and yes to the subsequent dialog

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Now launch the software center and search for firefox-4.0 and remove it

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Now search for firefox and install it.

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