Have you ever wanted to check out a feed on Google Reader before subscribing to it?  If you add a bookmark with the following code and click it when an RSS feed is available it will allow you to do just that.  This comes in handy if you are curious if the feed contains images or is just headlines without any text, this has saved me from subscribing to some less useful feeds.

Bookmark Code (copy and paste):

javascript:var%20b=document.body;if(b&&!document.xmlVersion)
{void(z=document.createElement(’script’));
void(z.src=’http://www.google.com/reader/ui/subscribe-bookmarklet.js’);
void(b.appendChild(z));}else
{location=’http://www.google.com/reader/view/feed/’+encodeURIComponent(location.href)}

This plugin is one of the best plugin’s I am using for Firefox these days.  This one fixes it so that little screen that pops up after you click an RSS feed link that lets you choose Google reader or iGoogle goes away and defaults to Google Reader.  It also allows you to skin the reader with a few different choices.  I am a fan of the OSX theme (yes I hate Macs but their color schemes are usually the best) this theme is very clean and gives Google Reader a new look.  Also it allows you open the link in the RSS feed right into the browser making it much cleaner and easier to use.

The code is written by our good friends over at Lifehacker, I also like it because I am not a big fan of using Grease Monkey scripts and that used to be the only way to change the look of Google Reader but now this is just a stand alone plugin.  Click the picture to get the plugin.