Firefox/Chrome/Opera: Interfacelift is one of our favorite sites for high-resolution wallpapers, but the added clicking required to get to the right size is a pain. InterfaceLift Resolutions Links is a userscript that adds direct links to each resolution right on the download page. More »

Last.fm is one of our favorite music recommendation and statistics engines, and if you've fallen in love with Amazon's new Cloud Player service, you're probably looking for a way to scrobble the songs you listen to. This script will do the trick. More »

Most browsers: You're filling out your shipping address on Amazon, and you decide you want to continue shopping. You grab a few more items and—oh no!—now you're stuck filling out that form again. Avoid this annoyance with a simple userscript. More »

Windows/Mac: Chrome syncs nearly everything about your browser choices. Everything, that is, except the "search engines"/keyword bookmarks you've painstakingly set up. One clever Lifehacker reader has fixed that, albeit in a round-about, script-fired, Dropbox-synced kind of way. More »

Chrome/Firefox/Opera/Safari: If you're unhappy with Facebook's new small font size (or other annoyances), userscript Better Facebook gives you over 75 extra options with which you can tweak Facebook to your liking.

Every time Facebook redesigns their home page, the entire internet seems to erupt (usually unnecessarily) in anger. Recently, however, Facebook changed its default font size for the news feed to a smaller font that is significantly harder to read, and it's a pretty legitimate complaint. Luckily, user script Better Facebook has you covered with a new feature that allows you to force a certain font size.