Which Chrome Extension Can You Not Live Without?

The world of Chrome extensions is vast and varied. With tens of thousands of options at your literal fingertips, sorting through the muck to find those golden, life- and time-saving nuggets can seem an impossible feat. So instead, dear readers, let's work together. Tell us: What's that one Chrome extension you just can't live without?

Maybe it's something that's actually useful or keeps you sane. Maybe it's just for fun. Or maybe—just maybe—it plays clown music any time the name Rob Ford appears on a page. We're not here to judge, we just want to know. So share your favorite, most wonderful Chrome extension discoveries down below. And just to make things a little easier, submit your pick in the following format:

[Extension Name/Link]

What it does: [What it does]

*Optional* Why you love it: [Why you love it]

The people of internet land thank you.