Comment 28 for bug 480596

Workaround for Karmic:

sudo apt-get install gears

sudo nano /usr/lib/xulrunner-addons/extensions/{000a9d1c-beef-4f90-9363-039d445309b8}/install.rdf

In this file, change 0.5.32 to 0.5.33

This will make firefox think you already have the 0.5.33 installed and thus not try to upgrade to it (failing every time)

Since Google doesn't support gears any longer there will probably not be any new updates anyway.

From http://tuxtweaks.com/2010/01/fix-google-gears-for-firefox-on-linux/ adapted for Karmic.

This is IMO the only way to have gears in Linux, since gears in Chrome for Linux never will be available.