This year's release of Firefox 3.5 gave us a lot of reasons to like it, but its extensibility remains everyone's favourite feature. These add-ons and theme tools were the most popular in the year gone by.
Our readers have submitted thousands of screenshots of their best desktop configurations, and over the year we've featured some truly impressive and unique desktops with you. Here's a look back at some of the best this year had to offer.
When technologists of the future look back in time, they'll remember 2009 as the year Google got serious about an internet operating system, speeding up the web and indexing EVERYTHING in sight. Take a look at the year 2009 in Google.
Nothing beats finding just the right application to fill a common need, fix a problem or boost your productivity. Give yourself an early Christmas present with 15 of the most popular Mac downloads of 2009.
We've featured hundreds of free Windows applications over the course for 2009 that we hoped might bolster your productivity, workflow, or your PC usefulness in one form or another. Here's a look back at the most popular Windows downloads of the year.
Every weekend, we comb our memories and archives to compile 10 useful items addressing a specific topic you may have forgotten about, or just happen to be excellent. Here are the list(icle) posts that proved the most popular in 2009.
We cover a lot of tips every day on Lifehacker, but we get our greatest pleasure from putting together in-depth, step-by-step guides. From Windows 7 to Hackintoshes and beyond, here's a look back at our most popular how-to features of '09.