FeedShow

The Google toobar (for Firefox) has a new feature for RSS aggregators:

You can now subscribe to your favorite web pages with just one click. Many different websites publish feeds with the latest updates to their sites so that, instead of visiting a website over and over for the latest news, you can use a feed reader to keep track of updates for you. The Toolbar will automatically detect if content of the page you are browsing is available for subscription and enable the “Subscribe” button to notify you. When enabled, simply click “Subscribe” and you’ll be taken to your chosen feed reader to confirm the subscription.

Unfortunately only a few aggregators are listed by default. FeedShow is not listed by default, however you can replace one that is listed by the one you want.

Just follow these steps:

• In your browser, go to this page: about:config
• Locate the “google.toolbar.subscribe.aggregators” options
• Double-click “google.toolbar.subscribe.aggregators.iGoogle.title” and modify its value with:
  “FeedShow”
• Double-click “google.toolbar.subscribe.aggregators.iGoogle.url’ and replace the value with:
  http://www.feedshow.com/add_subscriptions.php?action=feed_entry&feed_url=%feed%

Now restart your browser (optional ?) and set your preferences to use FeedShow RSS reader. You are now ready to use FeedShow from the Google toolbar.

Note that the toolbar seems to get the available aggregators from a file:
http://google.com/tools/firefox/toolbar/FT2/intl/en/aggregators.xml
The method described above is just a little hack to get FeedShow in the list.