X-blocker

Download extension

Blocks incoming things from the web.X-blocker blocks anything from any URL you want. You can configure regular expressions to match the URLs you want to block.

For instance, block everything from platform.twitter.com, because those iframes everywhere are slow!

1.6
Page/browser action support for Chrome 49+

1.5
Shameful white-space bug that blocked everything!

1.4
Collapsible help text. Added URL tester.

1.3
Allow open lines and # Comments in the patterns textarea.

1.2
Improved images, because Chrome bins page actions =( to make everything a browser action button. Weird.

1.1
Page action icon to show tabs with blocked content, and make it unblockable. Patterns will be stored in your Google profile, so they will be synced to all your computers, (if/when Google feels like it).