I’ve mentioned before that I’m a Firefox fan primarily because of the range of available extensions add-ons. One recent find – and it’s a true godsend – is URL Fixer. If you’ve ever cursed yourself having typed an address ending mistakenly in .ku or .cmo, you’ll know you need this. Sits in the background, and corrects you when it thinks you’ve screwed up. Which is exactly what you want it to do.