I have tried several Firefox extensions for URL shortening, and so far my favorite is Cutyfox because you can pick your preferred shortening service, but if a native shortener exists for the page you are on (e.g. Amazon, YouTube) it will (optionally) use that instead.

I had posted a little something yesterday, but thought it deserved a slightly fuller treatment. Browser tabs are awesome, as all browser makers now recognize. I run three Firefox extensions that play nicely together, and make for a tab experience I love, especially since I tend to have lots of tabs going all the time:

1. Tab Kit: among other things, this allows me to run the tabs vertically down the left hand side. While it takes getting used to, it’s much better than across the top. Since monitors are wide but web pages tend to be “tall”, you naturally have room on the side if you’re running at a decent resolution, and even with a ton of tabs open you can still see the title of each tab (unlike across the top, where the space for tab titles shrinks with each new tab). It also supports tab grouping and sorting and a bunch of other tweaks.
2. BarTap: one problem with keeping a ton of tabs going is how long it takes the browser to start up and load all the pages at once (assuming you have FF set to restore your tabs). BarTap solves this by displaying tabs (with the page titles) for all the tabs you had open, but it doesn’t actually load them until you visit them. MUCH faster to start up when you’ve carried over a bunch of tabs. (via rob)
3. Close Tab by Double Click: self-explanatory.

I don’t think I could go back to a blogging life that didn’t include the Firefox extensions Make Link and Rehost Image.

If you've ever wished you could deselect a radio button this hack is for you. Here's the way radio buttons usually behave:

See how once you select one, there's no way to get back to a state where no radio buttons are selected? Well, here's how to fix that:

• Use Firefox, not IE.
• Install the Greasemonkey extension and restart Firefox.
• Click here to install my "Clear Radio Button" Greasemonkey script.
• Try the radio buttons above again to observe the revised behavior (select a radio button, then click it again to deselect it).

Fans of the apparently-no-longer-maintained (and hasn't been for quite some time) SuperDragAndGo extension should check out Drag de Go. This dialog box should provide all the impetus you need for upgrading: