Installing Firebird Active Record driver for Ruby

Here is how to install activerecord-fb-adapter for rails
using the the gem version

gem install activerecord-fb-adapter
Fetching: fb-0.7.*.gem (100%)
Building native extensions.  This could take a while...
Fetching: activerecord-fb-adapter-0.7.*.gem (100%)
Successfully installed fb-0.7.*
Successfully installed activerecord-fb-adapter-0.7.*
2 gems installed

That is all You can build it manually if you wish

git clone https://github.com/rowland/activerecord-fb-adapter.git
cd activerecord-fb-adapter
rake gem

ls -lah pkg/activerecord-fb-*

gem install pkg/activerecord-fb-adapter-*.gem 

Successfully installed activerecord-fb-adapter-0.7.*
1 gem installed
Successfully installed 

gem install rails 

So now we are ready to play with Rails on Fire

Update:Rails works with this driver and here is the Rails guide