This plugin adds a button to the widget’s admin page that will delete all inactive widgets.
Extract the zip file and just drop the contents in the wp-content/plugins/ directory of your WordPress installation and then activate the Plugin from Plugins page.
Contributors & Developers
“Remove Inactive Widgets” is open source software. The following people have contributed to this plugin.Contributors
Interested in development?
Verify working in 3.5.1
Verify working in 3.5
Added a screenshot
Fixed some styling with the button to keep it from wrapping making it hard to read