WWER

(Update 2, got it, need to deinstall openjdk* packages as well, reflected below)
(Update, this does not work as of now, let me see if I can find a workaround)

As of now, the default Sun Java packages in Natty, will break WWER. You need to downgrade to 6.22.

Make sure the all icedtea-* and openjdk* packages are deinstalled through synaptic.

Go to http://archive.canonical.com/pool/partner/s/sun-java6/

Download (swap with amd64 for those on 64bit):

- sun-java6-bin_6.22-0ubuntu1~10.10_amd64.deb
- sun-java6-jre_6.22-0ubuntu1~10.10_all.deb
- sun-java6-plugin_6.22-0ubuntu1~10.10_amd64.deb

These has to be installed through command line:

Close Synaptic (if open).

sudo dpkg -i sun-java6*

Open Synaptic.


Choose these three packages and choose Package -> Lock Version

Restart firefox.

NB: If you get the 'Downloading WWERS' box, this might fail at about 80%, so you need to redo this until it succeeds and fully downloads. This took me about 10 tries...