While scouring the far corners of the internet, we often run across tools that look great but come up just short of making the cut for a post. For example, I've been keeping my eyes on a few Firefox extensions lately that I love, but they're still in Experimental mode on Mozilla, meaning that you need to register with Mozilla and sign in to download them—because Mozilla testers haven't yet gotten around to approving them to go public just yet. We pass on these to make sure anything we post is readily available to our readers. Rather than continue to wait, which can take a while with Mozilla's approval process, check out three of my favorite experimental Firefox extensions.