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).
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!