Decreased Productivity

Decreased Productivity CRX for Chrome

A Free Productivity Extension

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Decreased Productivity (nlbpiflhmdcklcbihngeffpmoklbiooj): Discreetly surf the web! Control exactly how you want web pages to look like.... Read More > or Download Now >

Decreased Productivity for Chrome

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922.32 KB

Chrome Store

Tech Specs

  • • Type: Browser Extension
  • • Latest Version:
  • • Require: Chrome 6 and up
  • • Offline: No
  • • Developer:

User Reviews

  • 253 Votes, Average: 4.58 out of 5
  • • Rating Average
  • 4.58 out of 5
  • • Rating Users
  • 253

Download Count

  • • Total Downloads
  • 302
  • • Current Version Downloads
  • 299
  • • Updated: May 17, 2021

Decreased Productivity is a free Productivity Extension for Chrome. You could download the latest version crx file or old version crx files and install it.

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More About Decreased Productivity

Decreased Productivity (DP) creates a more "consistent" browsing experience (for you and others around you) by letting you control what you want to see ("stealth browsing" => text/page background colours, the cloaking of images, hiding page favicons, changing fonts, etc.). You can choose what style you want (e.g. green text on a black background) by going to the Options page (right-click on icon in address bar and click on "Options"). DP has tab-specific support and domain whitelisting/blacklisting!

Supports Arabic, German, English (US), English (British), Spanish, Tagalog, Japanese, Korean, Portuguese, Russian, Vietnamese, Chinese (Simplified), and Chinese (Traditional)!

Please note that I am not responsible for what you do with this extension and any subsequent consequences; please browse responsibly.

Featured on Lifehacker:

Feature List:
-change the default font for cloaked pages (Calibri, Helvetica, Arial, or leave page fonts unchanged)
-set page background, text, link, and table border colours
-hide page icons (aka favicons)
-replace page titles
-keyboard toggle (CTRL + 12)
-choose between tab-specific cloaking or global cloaking
-choose whether new tabs are cloaked or uncloaked by default
-control image opacity
-whitelist/blacklist domains (whitelisted domains will never be cloaked while blacklisted domains will always be cloaked (even if "Enable" is unticked))
-add right-click option to open links/images safely (can be removed in Options)
-choose between four modes: Paranoid (remove images and multimedia), SFW1 (cloak images and remove multimedia), SFW2 (cloak images only), and NSFW (show all)
-add toggle icon in address bar (can be removed in Options)
-choose to always show images that are within a specified dimension


v0.46.34 - Sunday, August 21, 2011
-Español and Japanese locales updated (thank you Luciano and Yamaji for translating!)
-fixed minor locale issue in the Options page (thanks Yamaji)

v0.46.33 - Wednesday, August 10, 2011
-you can now set how transparent images are! (unhovered and hovered; live example provided in the Options page)
-added keyboard shortcut (CTRL+F12) to toggle the cloaking of pages! (enabled by default; you can disable this in the Options page)
-fixed possible memory leak (and intermittent browser crash (?)) (related to the page title cloaking function and an infinite loop)
-minor updates to the Español locale (thanks Luciano)
-updated coffee-buyer list :)

v0.46.31-0.46.32 - Tuesday, August 9, 2011
-made blacklist/whitelists easier to read
-added option to unbold text
-added Monospace and Serif font options
-(and updated coffee-buyer list :))

v0.46.29-v0.46.30 - Monday, August 1, 2011
-optimized code (refactored to leverage jQuery for content scripting)
-added functions to make cloaking more reliable and miss less elements (div, links, spans, and page titles (Facebook would update its title periodically and "undo" the title cloaking... not anymore!))
-made "Enable Stickiness" disabled by default for fresh installs (Stickiness: new tabs from cloaked pages are cloaked)
-updated coffee-buyer list :)

v0.46.27-v0.46.28 - Thursday, July 28, 2011
-added "catch-all" code to ensure all link colors are changed (if DP is enabled)
-added "White - Green" color preset
-updated the German locale (thanks Christoph!)
-updated locale files to be easier to translate
-added my contact information on the Options page so you can get in touch with me more easily!

v0.46.21-v0.46.26 - Wednesday, July 27, 2011
-added option to always show images that are within a specified dimension (width x height in pixels). By default, this is disabled (0 x 0px).
-updated behaviour to be more logical; now DP won't be automatically enabled on all sites once a blacklisted site is visited while in global mode
-updated options page to be more intuitive (glorious lines! (aka borders))
-changed default font to Arial from Calibri (reasoning: Arial is older than Calibri and more likely to be on more systems). If Arial doesn't exist on the system, a sans-serif font will be used.

v0.46.17-v0.46.20 - Monday, May 30, 2011
-added option to cloak page titles (disabled by default; default page title is "Google Chrome", but you can change it)
-added color-picker popups for the color options in the Options page (and changed alert notifications into fade-in messages instead)
-added "Enable Stickiness" option, where you can control whether or not tabs opened from a cloaked page are cloaked as well! (enabled by default)
-added "Show Update Popup" option, where you can control whether or not you see the page that popups in the background with a list of what's new each time you are updated to a newer version of DP! (enabled by default)

v0.46.10-v0.46.16 - Friday, May 20, 2011
-added domain whitelisting/blacklisting support
-added option to hide page favicons
-added SFW2 mode (cloak images only, leave Flash videos intact)
-improved right-click context menu loading speed
-set default text selection colours (white text on dark gray)
-added compatibility for LastPass (autologin/autofill button display)
-added update notification

v0.46.6-0.46.9 - Wednesday, February 9, 2011
-corrected partial inheritance behavior (issue below still exists) (v0.46.9)
-added ability to customize all styling colours and added live demo area to Options page (v0.46.7)
-updated to support dark backgrounds (remove flicker upon page load) (v0.46.7)
-further improved initial cloaking speed
-code clean-up and optimization
-support for inheritance a little buggy (if new link opens in background, then it will work properly; if the new link opens in the foreground, it will not inherit)

v0.46.3-v0.46.5 - Monday, February 7, 2011
-corrected "Safely open in new tab" behavior (v0.46.5)
-improved initial cloaking speed to prevent content from appearing on page load (v0.46.4)
-added option to show/hide link underlines (enabled by default)
-added option to set Level: NSFW (show all), SFW (cloak images and hide flash), Paranoid (hide everything) (SFW by default)

v0.46.2 - Friday, February 4, 2011
-Happy Belated New Year!
-added new style: "Dark Brown - Off-White"
-added support for inheritance (e.g. if parent tab is cloaked, then all spawned child tabs will also be cloaked)

v0.46.1 - Tuesday, December 7, 2010
-minor code changes that take into account whether or not the extension is enabled before initially hiding elements (should solve reference error)

v0.46 - Monday, December 6, 2010
-fixed reported bug (with Google Apps; thanks Max!)
-made minor code changes that may speed up initial element hiding

v0.45 - Sunday, December 5, 2010
-fixed minor bugs (CSS; reported bug)
-now initially hides all elements until page is loaded, where it then cloaks the page (there's still a slight flicker, but it should be substantially improved now)
--I tried to change the default white background to match the chosen style, but I couldn't (so for those of you using the Black background like myself, you'll have to bear with blinding white screens between page loads :()
-added names of more generous donors to Options page :)

v0.43-v0.44 - Saturday, October 23, 2010
-v0.43: fixed bug where closing a new tab would uncloak a previously cloaked tab
-v0.43: added option to leave font type and size unmodified ("-Unchanged-" for Font in Options page)
-v0.44: made Options page more conspicuous (renamed title to "DP Options", made heading, options box and donation image translucent but opaque on hover)
-----extension size is now 47kB instead of ~240kB (due to removal of 512x512 coffee cup image used in Options page)
-----please try to use this extension responsibly

v0.40-v0.42 - Tuesday, October 19, 2010
-fixed minor bugs
-made text fields and textareas have a dotted outline for increased clarity
-added list of generous donators in Options page (last names abbreviated for privacy); if you donate, you will be added :)

-added ability to set mode: Global or Page-Specific (we're limited to having only one icon in the address bar)
-added option, if mode set to Page-Specific, to open new tabs as either Cloaked or Uncloaked.
-added new style: "White - Gray" (white background with gray text/links)

v0.38 - Monday, October 18, 2010
-made it so at least Chrome 6 has to be installed since this extension requires permission to use the context menu (re: the permissions[2] error)
--will still have to look into why it's not working on Linux
-to update your Chrome, click on the Wrench => About

-overall code clean-up and optimization for faster styling of pages

v0.36 - Sunday, October 17, 2010
-added option to "Show Context Menu"
-changes made in the Options page now take effect immediately to all tabs
-clicking on "Safely open in new tab" will enable DP and also enable SFW Mode (since it doesn't make sense if it doesn't enable SFW Mode!)

-added "Safe-for-Work Mode" option; if enabled (which it is by default), it will cloak images and hide multimedia (e.g. Flash). If disabled, images and multimedia will appear normally at full opacity

-made the default font an option in the Options page

-set default font to Calibri and slightly increased font-size for readability

-added new style: Light Red - Pale Blue (based on f.lux's site:

-minor aesthetic change to Option page

-added "Safely open in new tab" support for images
-different styles added

v0.2 - Saturday, October 16, 2010
-added toggle icon
-options to enable/disable cloaking and toggle icon
-added right-click context menu item for links to "Safely open in new tab"

v0.1 - Friday, July 23, 2010
-first version

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