If your boss is particularly restrictive to non-work browsing while you're on the clock, Firefox extension Decreased Productivity makes web pages you're looking at dull and boring so your boss will be none the wiser.
(Click the image above for a closer look.)
Decreased Productivity adds a small toolset to your Firefox browser that, once activated, drops a style sheet over the web page you're looking at that washes out the images and converts all the text to a plain, boring font. Anyone who glances at your screen as they walk by won't have a clue what web sites you're visiting and when the coast is clear just hover your mouse over the image place holders to see them again.
Commenting on blogs and forums takes time, so Decreased Productivity also gives users a drop-down context menu and hotkeys to common markup languages so you can format your comments quickly and get back to work—or more discreet browsing. It's not that we encourage everyone to goof off all day at work, but sometimes even the most productive workers need a little reprieve.
We've seen plenty of boss key tools in the past, and we've even shown you how to create your own customized boss key, but Decreased Productivity's browser-specific features are handy. What browser tools do you use at work to hide the fact you're taking a little R&R when you should be working (it's okay, we all do it). Share your tips in the comments; you're secret's safe with us.
Decreased Productivity [Firefox Add-ons]