Firefox 2 by default supports only three Web feed readers: Bloglines, Yahoo! and Google Reader. You can however, add as many providers as you like, and use any of them as your subscription manager. For this, you’ll need to do a couple of about:config tweaks and add some preferences.

Just open a new tab in Firefox and in the address bar type ‘about:config‘ (without the quotes) and hit Enter. What you see is the Firefox configuration page. Here you can configure a lot of Firefox settings. But right now we are interested only in the feeds.

• Create a new preference by right-clicking on any preference and selecting New > String.
• Enter “browser.contentHandlers.types.6.title” for the preference name. Then enter the URL of whichever service you want to use - Newsgator, for example,(www.newsgator.com) for the value.
• As you add more Web feed readers, you will need to change the “6″ to the next number. 6 happens to be the first available.
• Create a new preference and enter “browser.contentHandlers.types.6.type” for the preference name. Enter “application/vnd.mozilla.maybe.feed” for the value.
• Create yet another preference name and enter “browser.contentHandlers.types.6.uri” for the preference name, and “http://www.newsgator.com/subscribe.php?url=%s” for the preference value.

You’re done - just restart Firefox.

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