Site Blocker автор Prash

Site Blocker - a simple site blocker that takes a list of comma separated web sites and redirects the browser to a redirect URL (configurable).

The site list can be specified as a comma separated list or on new lines
If the line is preceded by the + sign, that list shall be white listed

Features in v0.2
* Support for custom redirect URL
* Added Enable/Disable toggle button
* Added browser action button for easy access